How did the three-meter layer of fertile soil appear in Russian tundra?
Usually there are extremely sparse soils near the Arctic Circle.

I watch this channel of the researcher of the alternative history of the Russian lands and find many interesting facts. English-speaking viewers can be helped by automatic translation of subtitles.

https://youtu.be/JyzVHTsdH-Q

Santa Clara-a-Nova Monastery, Coimbra, Portugal

Фрагмент литографии Деру

Обратите внимание на высоту административного здания напротив Кремля и высоту постамента памятника Минину и Пожарскому.

Фотография снизу - 1886 год:
здание и памятник заметно «просели»! А что со стеной?

ЗАБЫТАЯ ИСТОРИЯ

As was showed in this post, the ground level of Red Square was much lower.

Lithography by Deroy from the Cadolle’s picture “Vue de la place des boutiques”. The first half of 19 century.

One more interesting lithography of Kremlin and Red Square. Looks like the author wasn’t there or this is a fake. Wrong proportions and St. Basil’s cathedral looks defferent.

Der Kremlin in Moskau, 19th century

Comparing soviet and American medals.

Both cultures have chosen 5-pointed stars as main symbol for the highest medals. Only the position is different.

Moscow, Prospekt Mira

1882. All-Russian Industrial and Art Exhibition in Moscow. Pavilion of the Association "A.I. Abrikosov Sons"
- there are too many "lightning rods", they look like antennas.