Hoots and haunts
Great horned owl (© Mark Newman/Getty Images)

A haunting history
View of Edinburgh Castle from a churchyard in Scotland (© Chris Dorney/Alamy)

A haunting history
View of Edinburgh Castle from a churchyard in Scotland (© Chris Dorney/Alamy)

Stone-cold stares on Halloween
Chimera of Notre-Dame de Paris, France (© scaliger/Getty Images)

Stone-cold stares on Halloween
Chimera of Notre-Dame de Paris, France (© scaliger/Getty Images)

Celebrating America's Native heritage
Pueblo ruins, Hovenweep National Monument, Utah (© Alan Majchrowicz/Getty Images)

Celebrating America's Native heritage
Pueblo ruins, Hovenweep National Monument, Utah (© Alan Majchrowicz/Getty Images)

From near extinction to national icon
American bison in Yellowstone National Park, Wyoming (© Ian Shive/TANDEM Stills + Motion)

From near extinction to national icon
American bison in Yellowstone National Park, Wyoming (© Ian Shive/TANDEM Stills + Motion)

Nurturing nature
Caribbean flamingo nests, Ría Lagartos Biosphere Reserve, Yucatán, Mexico (© Claudio Contreras/Minden Pictures)

Nurturing nature
Caribbean flamingo nests, Ría Lagartos Biosphere Reserve, Yucatán, Mexico (© Claudio Contreras/Minden Pictures)

Worth a thousand words
Grasmere, Lake District, Cumbria, England (© Thomas Molyneux/Getty Images)

Worth a thousand words
Grasmere, Lake District, Cumbria, England (© Thomas Molyneux/Getty Images)

Out of many, one
Autumn sunrise over the National Mall, Washington, DC (© WLDavies/iStock/Getty Images Plus)

Out of many, one
Autumn sunrise over the National Mall, Washington, DC (© WLDavies/iStock/Getty Images Plus)

Shades of sunset
Shi Shi Beach in Olympic National Park, Washington (© T.M. Schultze/TANDEM Stills + Motion)

Shades of sunset
Shi Shi Beach in Olympic National Park, Washington (© T.M. Schultze/TANDEM Stills + Motion)

Wolves in the wild
Vancouver Coastal Sea wolves in Great Bear Rainforest, British Columbia, Canada (© Nick Garbutt/Alamy)

From the land of fire and ice
Aerial view of glacial rivers in Iceland (© rybarmarekk/Shutterstock)

From the land of fire and ice
Aerial view of glacial rivers in Iceland (© rybarmarekk/Shutterstock)

Cosmic views over earthly hues
Milky Way, Aït Benhaddou, Morocco (© Cavan Images/Getty Images)