Clark Range, Sierra Nevada, Yosemite National Park, California, United States (© Robb Hirsch/TANDEM Stills + Motion)

Oxbow Bend on the Snake River, Grand Teton National Park, Wyoming, United States (© DanitaDelimont.com/AWL Images/SuperStock)

Heather growing in Glen Brittle, Isle of Skye, Scotland (© Adam Mowery/TANDEM Stills + Motion)

'Inside Out' by JR at the Nathan Phillips Square, Nuit Blanche 2015, Toronto (© Melissa Renwick/Contributor/Getty Images)

Boreal owl in a forest in Central Europe (© Ondrej Prosicky/Alamy)

Anshun Bridge illuminated for the Mid-Autumn Festival, Chengdu, China (© Philippe LEJEANVRE/Getty Images)

Fall colours below Mount Sneffels near Ridgway, Colorado, United States (© Grant Ordelheide/TANDEM Stills + Motion)

Day octopus, Maui, Hawaii, United States (© Dave Fleetham/plainpicture)

Coral reef surrounding the island of Monuriki, Mamanuca Islands, Fiji (© David Wall/SuperStock)

Wood duck hen, United States (© ps50ace/iStock/Getty Images)

Village of Saranac Lake, Adirondack Mountains, New York, United States (© DenisTangneyJr/Getty Images)

River rapids in Algonquin Provincial Park, Ontario (© Pgiam/Getty Images)

Village of Oia, Santorini, Greece (© f9photos/Getty Images)