In 1503, Leonardo da Vinci ventured into the countryside near Arezzo to sketch the landscape. He was captivated by an old Roman bridge spanning the Arno River, with its four arches and the winding road leading up to it. “How beautiful,” he reportedly said, setting up his canvas to capture the scene.
Just then, a message arrived from his workshop: a wealthy client had come and requested a portrait. “Again,” Leonardo sighed, tucked the sketch under his arm, and returned to town.
According to Italian historian Silvano Vinceti, who recently identified the ruins of the bridge in Leonardo’s painting, this moment may have influenced the creation of the “Mona Lisa.” Only one of the original four arches remains, yet it was enough for the Romito di Laterina Bridge to earn its own Wikipedia page.
Leonardo was not only a master painter but also an innovative engineer. In his notes from 1502, he designed a bridge for the Sultan of Turkey, a concept that was finally realized in the 21st century.
If anyone could prove that building bridges is an art, it was Leonardo. And anyone who has seen Earth from orbit knows that roads can be art as well. At night, the glowing network of highways forms the largest artwork on the planet.
P.S. If Leonardo had Google Maps, he’d still take the scenic route.
🛤️🧑🎨📜
#PS_NPS #NationalProjectConstruction #PS_NPS_History #PS_NPS_Art
Just then, a message arrived from his workshop: a wealthy client had come and requested a portrait. “Again,” Leonardo sighed, tucked the sketch under his arm, and returned to town.
According to Italian historian Silvano Vinceti, who recently identified the ruins of the bridge in Leonardo’s painting, this moment may have influenced the creation of the “Mona Lisa.” Only one of the original four arches remains, yet it was enough for the Romito di Laterina Bridge to earn its own Wikipedia page.
Leonardo was not only a master painter but also an innovative engineer. In his notes from 1502, he designed a bridge for the Sultan of Turkey, a concept that was finally realized in the 21st century.
If anyone could prove that building bridges is an art, it was Leonardo. And anyone who has seen Earth from orbit knows that roads can be art as well. At night, the glowing network of highways forms the largest artwork on the planet.
P.S. If Leonardo had Google Maps, he’d still take the scenic route.
🛤️🧑🎨📜
#PS_NPS #NationalProjectConstruction #PS_NPS_History #PS_NPS_Art
What a spooky day today...
In many myths and legends, the border between the living and the dead runs along a river. A narrow bridge stretches across it, allowing souls to pass into eternal bliss.
The Norse called it Gjallarbrú, the Arabs As-Sirāt, and the Persians Chinvat. All were one-way and perilously thin, which often led to celestial traffic jams and the occasional soul slipping into the river below.
In Russian mythology, the same role belonged to the Kalinov Bridge over the fiery Smorodina River. The name doesn't come from the berry, but from smrad, the stench of burning sulfur. And Kalina here recalls Kalina the Tsar, ruler of the underworld.
In Russian fairy tales, the Kalinov Bridge often becomes a battlefield. The hero, usually a warrior named Ivan, must stop a many-headed monster trying to cross from the world of the dead into the world of the living.
So the Kalinov Bridge clearly has two lanes of traffic, since the creature must be coming from the opposite direction. It is far sturdier than its foreign counterparts, holding both heroes in armor and beasts from the abyss.
P.S. Rest assured, all NPS-built bridges are monster-free.
🦸🏼♂️🪽 🚧
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
In many myths and legends, the border between the living and the dead runs along a river. A narrow bridge stretches across it, allowing souls to pass into eternal bliss.
The Norse called it Gjallarbrú, the Arabs As-Sirāt, and the Persians Chinvat. All were one-way and perilously thin, which often led to celestial traffic jams and the occasional soul slipping into the river below.
In Russian mythology, the same role belonged to the Kalinov Bridge over the fiery Smorodina River. The name doesn't come from the berry, but from smrad, the stench of burning sulfur. And Kalina here recalls Kalina the Tsar, ruler of the underworld.
In Russian fairy tales, the Kalinov Bridge often becomes a battlefield. The hero, usually a warrior named Ivan, must stop a many-headed monster trying to cross from the world of the dead into the world of the living.
So the Kalinov Bridge clearly has two lanes of traffic, since the creature must be coming from the opposite direction. It is far sturdier than its foreign counterparts, holding both heroes in armor and beasts from the abyss.
P.S. Rest assured, all NPS-built bridges are monster-free.
🦸🏼♂️🪽 🚧
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
At the end of the 18th century, the chinoiserie style became fashionable throughout Europe and Russia. Derived from the French word for "Chinese" the term described art, decorative objects, and engravings imported from China.
European monarchs in France, Sweden, and Russia were key promoters of Chinese culture. Their palaces and country estates often featured “Chinese villages” complete with pagodas, gateways, and bridges inspired by the architecture of Beijing’s Forbidden City.
Gateways and bridges built in this style often symbolized a full moon. The gates featured rounded arches, while the bridges were designed so that their reflection in the water formed a perfect circle. A famous example of this is the Jade Belt Bridge in Beijing’s Summer Palace, built in the mid-18th century.
In Russia, such moon bridges were constructed in the Chinese Village at Tsarskoye Selo and on the estate at Tsaritsyno near Moscow during the reign of Catherine the Great.
True to their Chinese inspiration, these structures were designed more for aesthetic beauty than for practical use.
P.S. Full moons don't have to be fleeting.
🎐🌚🪞
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Architecture
European monarchs in France, Sweden, and Russia were key promoters of Chinese culture. Their palaces and country estates often featured “Chinese villages” complete with pagodas, gateways, and bridges inspired by the architecture of Beijing’s Forbidden City.
Gateways and bridges built in this style often symbolized a full moon. The gates featured rounded arches, while the bridges were designed so that their reflection in the water formed a perfect circle. A famous example of this is the Jade Belt Bridge in Beijing’s Summer Palace, built in the mid-18th century.
In Russia, such moon bridges were constructed in the Chinese Village at Tsarskoye Selo and on the estate at Tsaritsyno near Moscow during the reign of Catherine the Great.
True to their Chinese inspiration, these structures were designed more for aesthetic beauty than for practical use.
P.S. Full moons don't have to be fleeting.
🎐🌚🪞
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Architecture
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Edvard Munch is still one of the most fascinating figures in modern art. Born in Norway in 1863, he changed how people see emotion in painting. The Scream became a symbol of fear and human vulnerability, and even now it feels surprisingly modern.
Munch also had a quieter side. He often painted bridges and roads, using them as symbols of change and reflection.
One of his most poetic works, Girls on the Bridge, was created in the small coastal town of Åsgårdstrand, where he spent many summers. The bridge in the painting was real, but it is long gone. One of the most beautiful versions of Girls on the Bridge belongs to Moscow’s Pushkin State Museum of Fine Arts.
The setting for The Scream was real too, on a road near Oslo’s Ekeberg Hill. Looking out over the city and the fjord, Munch once wrote that he felt “a great scream passing through nature.” Today the site is marked for visitors.
He painted several versions of both The Scream and Girls on the Bridge, returning to the same images again and again. Each version seems like another attempt to grasp the fragile balance between calm and unease, beauty and fear.
For Munch, bridges and roads were never just scenery. They were moments when life seemed to stop and show its true feeling.
P.S. Turning infrastructure into introspection.
😱🎢🖼
#PS_NPS #NationalProjectConstruction #PS_NPS_Art
Munch also had a quieter side. He often painted bridges and roads, using them as symbols of change and reflection.
One of his most poetic works, Girls on the Bridge, was created in the small coastal town of Åsgårdstrand, where he spent many summers. The bridge in the painting was real, but it is long gone. One of the most beautiful versions of Girls on the Bridge belongs to Moscow’s Pushkin State Museum of Fine Arts.
The setting for The Scream was real too, on a road near Oslo’s Ekeberg Hill. Looking out over the city and the fjord, Munch once wrote that he felt “a great scream passing through nature.” Today the site is marked for visitors.
He painted several versions of both The Scream and Girls on the Bridge, returning to the same images again and again. Each version seems like another attempt to grasp the fragile balance between calm and unease, beauty and fear.
For Munch, bridges and roads were never just scenery. They were moments when life seemed to stop and show its true feeling.
P.S. Turning infrastructure into introspection.
😱🎢🖼
#PS_NPS #NationalProjectConstruction #PS_NPS_Art
Until July 6, 1838, there were few options for paving city streets.
Cobblestone roads were bumpy and unpleasant, though they lasted a long time. Stone blocks were too costly for city budgets and required a great deal of labor to lay. Wooden block pavements looked elegant but didn't last long under heavy rain. Something new was needed.
The first Russian asphalt appeared as the result of a bold experiment. It was tested in St. Petersburg on the sidewalk near St. Isaac’s Cathedral. A 100-meter stretch was first laid with bricks, then covered with a molten asphalt mixture combined with pieces of granite. The result was promising.
That is how, in 1838, a novel type of pavement appeared in Russia. Modern roads are now impossible to imagine without it.
The author of the experiment, Franz Buttatz, was a skilled engineer and experienced designer. He took part in the construction of several bridges, including the Anichkov Bridge. Just two years later, the Moscow City Duma commissioned him to pave Tverskaya Street with asphalt, allocating a budget of 50,000 rubles.
This marked the beginning of asphalt’s triumphant journey across Russia.
P.S. The method stuck, quite literally.
🧱🗿🏘
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
Cobblestone roads were bumpy and unpleasant, though they lasted a long time. Stone blocks were too costly for city budgets and required a great deal of labor to lay. Wooden block pavements looked elegant but didn't last long under heavy rain. Something new was needed.
The first Russian asphalt appeared as the result of a bold experiment. It was tested in St. Petersburg on the sidewalk near St. Isaac’s Cathedral. A 100-meter stretch was first laid with bricks, then covered with a molten asphalt mixture combined with pieces of granite. The result was promising.
That is how, in 1838, a novel type of pavement appeared in Russia. Modern roads are now impossible to imagine without it.
The author of the experiment, Franz Buttatz, was a skilled engineer and experienced designer. He took part in the construction of several bridges, including the Anichkov Bridge. Just two years later, the Moscow City Duma commissioned him to pave Tverskaya Street with asphalt, allocating a budget of 50,000 rubles.
This marked the beginning of asphalt’s triumphant journey across Russia.
P.S. The method stuck, quite literally.
🧱🗿🏘
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
The pumpkin season has come and gone. But when the last leaves fall and the fields turn bare, there’s still a quiet beauty in places that carry autumn’s name.
One of them is Pumpkin Hollow Bridge, near Sequoia National Park. Built of reinforced concrete with a graceful arch, it has long served as an approach bridge to the park. Its modern, functional form stands apart from the rustic stone and log bridges within Sequoia, which were designed by the National Park Service to blend with their surroundings. Yet this contrast gives Pumpkin Hollow its own kind of beauty. It becomes a link between the ordered world of the highway and the wild stillness of the forest beyond.
Far across the country stands Pumpkin Seed Bridge in New Hampshire. This lenticular full-deck truss, built by the Berlin Iron Bridge Company in the late 19th century, may be the last of its kind. Though one approach span has collapsed, much of the bridge remains and could be restored. The main span retains its original fishbelly floor beams and most of its structure. Closed to traffic since 1959, it stands quietly among trees and water, an enduring piece of ironwork shaped like its namesake seed.
Both hold the memory of autumn long after the harvest is gone. As winter approaches, another bridge takes the spotlight: the GC NPS-built Star Bridge, marking the quiet shift from golden fields to starlit nights.
P.S. Autumn leaves, bridges stay.
🌾🎃🪵
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Architecture
One of them is Pumpkin Hollow Bridge, near Sequoia National Park. Built of reinforced concrete with a graceful arch, it has long served as an approach bridge to the park. Its modern, functional form stands apart from the rustic stone and log bridges within Sequoia, which were designed by the National Park Service to blend with their surroundings. Yet this contrast gives Pumpkin Hollow its own kind of beauty. It becomes a link between the ordered world of the highway and the wild stillness of the forest beyond.
Far across the country stands Pumpkin Seed Bridge in New Hampshire. This lenticular full-deck truss, built by the Berlin Iron Bridge Company in the late 19th century, may be the last of its kind. Though one approach span has collapsed, much of the bridge remains and could be restored. The main span retains its original fishbelly floor beams and most of its structure. Closed to traffic since 1959, it stands quietly among trees and water, an enduring piece of ironwork shaped like its namesake seed.
Both hold the memory of autumn long after the harvest is gone. As winter approaches, another bridge takes the spotlight: the GC NPS-built Star Bridge, marking the quiet shift from golden fields to starlit nights.
P.S. Autumn leaves, bridges stay.
🌾🎃🪵
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Architecture
The very first bridge in the world was probably just a fallen tree across a river. But thousands of years ago, people stopped relying on nature and took bridge-building into their own hands. Some of those ancient structures are still in use today.
One of the oldest is the Arkadiko Bridge on the Peloponnese in Greece. Built from limestone during the Mycenaean period, around 1300 BCE, it is 22 meters long and 4 meters high or just wide enough for ancient chariots to pass. It formed part of a military road linking Tiryns and Epidauros, and remains remarkably intact
Another survivor of the ancient world is the Caravan Bridge in Izmir, Turkey. It spans the Meles River, which the legendary poet Homer mentions in his works. Believed to be around 3,000 years old, it even holds a Guinness World Record as one of the oldest man-made structures still in use today.
The Pons Fabricius was built in 62 BCE. It is also known as the Bridge of the Four Heads because of the two-faced statues adorning its parapets, and as the Bridge of the Jews due to its proximity to what was once the Jewish Ghetto. The structure consists of two arches, measures 62 meters in length, and is made of travertine. On both sides of the bridge are Latin inscriptions honoring its builder: “Lucius Fabricius, son of Gaius, superintendent of roads, took care to build this bridge and approved its construction.”
P.S. Good design never really ages.
⛺️🧱🕰
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_History
One of the oldest is the Arkadiko Bridge on the Peloponnese in Greece. Built from limestone during the Mycenaean period, around 1300 BCE, it is 22 meters long and 4 meters high or just wide enough for ancient chariots to pass. It formed part of a military road linking Tiryns and Epidauros, and remains remarkably intact
Another survivor of the ancient world is the Caravan Bridge in Izmir, Turkey. It spans the Meles River, which the legendary poet Homer mentions in his works. Believed to be around 3,000 years old, it even holds a Guinness World Record as one of the oldest man-made structures still in use today.
The Pons Fabricius was built in 62 BCE. It is also known as the Bridge of the Four Heads because of the two-faced statues adorning its parapets, and as the Bridge of the Jews due to its proximity to what was once the Jewish Ghetto. The structure consists of two arches, measures 62 meters in length, and is made of travertine. On both sides of the bridge are Latin inscriptions honoring its builder: “Lucius Fabricius, son of Gaius, superintendent of roads, took care to build this bridge and approved its construction.”
P.S. Good design never really ages.
⛺️🧱🕰
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_History
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They say there’s no such thing as bad weather. Try telling that to British railway workers. The railways of the Foggy Albion are as weather-sensitive as an arthritic knee. In winter, trains are stopped by the “wrong kind of snow,” and in autumn, by falling leaves.
Every year, to the rhythm of a Boston waltz, thousands of leaves settle on the tracks. The passing trains crush them into a slick, slippery paste that reduces wheel traction and makes braking difficult. The leaf residue also interferes with systems that track train locations, preventing dispatchers from maintaining safe intervals between trains.
When the forests turn amber, the British send out crews to clear the rails by hand. Special cleaning trains are dispatched as well. They wash the golden carpet from the tracks with powerful jets of water and then coat the rails with a gel made from sand and steel particles. Artificial intelligence helps monitor the condition of the tracks.
When even these efforts aren’t enough, some routes switch to special autumn timetables with longer intervals between trains. This gives drivers more time for careful maneuvering.
The delays hardly make passengers happy. For them, the seasonal battle with linden and poplar leaves is just another reason to joke, and the familiar excuse about “leaves on the line” sounds like little more than a feeble alibi.
P.S. Foliage fleetly foiling fast fares... try saying that ten times fast!
🍂🧹🚂
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
Every year, to the rhythm of a Boston waltz, thousands of leaves settle on the tracks. The passing trains crush them into a slick, slippery paste that reduces wheel traction and makes braking difficult. The leaf residue also interferes with systems that track train locations, preventing dispatchers from maintaining safe intervals between trains.
When the forests turn amber, the British send out crews to clear the rails by hand. Special cleaning trains are dispatched as well. They wash the golden carpet from the tracks with powerful jets of water and then coat the rails with a gel made from sand and steel particles. Artificial intelligence helps monitor the condition of the tracks.
When even these efforts aren’t enough, some routes switch to special autumn timetables with longer intervals between trains. This gives drivers more time for careful maneuvering.
The delays hardly make passengers happy. For them, the seasonal battle with linden and poplar leaves is just another reason to joke, and the familiar excuse about “leaves on the line” sounds like little more than a feeble alibi.
P.S. Foliage fleetly foiling fast fares... try saying that ten times fast!
🍂🧹🚂
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained
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November has settled in.
The air feels fresh and calm, carrying the clean scent of rain. As days grow shorter, muted light persists with a quiet warmth, softening everything it touches. Bare trees stand clear against a pale sky, and the ground glows with the color of old leaves.
It is a steady, peaceful time. Summer’s noise has faded, and the chill of winter lingers just beyond the horizon. The world feels balanced and ready for the season ahead.
🍁🌧️
#PS_NPS #NationalProjectConstruction
The air feels fresh and calm, carrying the clean scent of rain. As days grow shorter, muted light persists with a quiet warmth, softening everything it touches. Bare trees stand clear against a pale sky, and the ground glows with the color of old leaves.
It is a steady, peaceful time. Summer’s noise has faded, and the chill of winter lingers just beyond the horizon. The world feels balanced and ready for the season ahead.
🍁🌧️
#PS_NPS #NationalProjectConstruction
A tiny train crosses the vast landscapes of Canada in Jeff Friesen’s photographs.
About a decade ago, the photographer began a playful project called The Canadian: Ghost Train Crossing Canada.
Using a five-centimeter model of the classic 1955 streamliner, he recreated its journey from Toronto to Vancouver. The miniature train appeared in forests, canyons, and along quiet shores, turning the country’s open spaces into scenes of nostalgia and imagination.
The real Canadian, now operated by VIA Rail, travels 4,466 kilometers between Toronto and Vancouver in just over four days, making around 65 stops, many of them on request. When it debuted in 1955 under Canadian Pacific Railway, it introduced sleek stainless-steel coaches and panoramic dome cars that defined a new standard of comfort and style.
Today, The Canadian still carries passengers across the country in three service classes: Economy, Sleeper Plus, and Prestige. Its signature Skyline cars, with glass-roofed observation lounges, offer sweeping views of rivers, mountains, prairies, and forests that stretch to the horizon.
In 2013, The Canadian earned a place on Canada’s $10 polymer banknote, celebrating a train that continues to link the nation from coast to coast.
P.S. This Canadian may be small, but its journey remains as grand as ever.
🚂🫧⛰️
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Transport
About a decade ago, the photographer began a playful project called The Canadian: Ghost Train Crossing Canada.
Using a five-centimeter model of the classic 1955 streamliner, he recreated its journey from Toronto to Vancouver. The miniature train appeared in forests, canyons, and along quiet shores, turning the country’s open spaces into scenes of nostalgia and imagination.
The real Canadian, now operated by VIA Rail, travels 4,466 kilometers between Toronto and Vancouver in just over four days, making around 65 stops, many of them on request. When it debuted in 1955 under Canadian Pacific Railway, it introduced sleek stainless-steel coaches and panoramic dome cars that defined a new standard of comfort and style.
Today, The Canadian still carries passengers across the country in three service classes: Economy, Sleeper Plus, and Prestige. Its signature Skyline cars, with glass-roofed observation lounges, offer sweeping views of rivers, mountains, prairies, and forests that stretch to the horizon.
In 2013, The Canadian earned a place on Canada’s $10 polymer banknote, celebrating a train that continues to link the nation from coast to coast.
P.S. This Canadian may be small, but its journey remains as grand as ever.
🚂🫧⛰️
#PS_NPS #NationalProjectConstruction #PS_NPS_Explained #PS_NPS_Transport