Melting ice walls of a glacial cave, Mount Rainier, Washington (© Chris Moore/Tandem Stills + Motion)(Bing New Zealand)

Mount Taranaki in Egmont National Park, New Zealand (© NASA/USGS)(Bing New Zealand)

Königssee lake, Bavaria, Germany (© Val Thoermer/Alamy)(Bing New Zealand)

Interior of the National Library of China, Beijing (© Zens photo/Getty Images)(Bing New Zealand)

Chinese lantern fruit (© Olivier Parent/Alamy)(Bing New Zealand)

Common wombat foraging in Cradle Mountain-Lake St Clair National Park, Tasmania, Australia (© Stormfront Films/Mammoth HD)(Bing New Zealand)

Common octopus in the Mediterranean Sea (© Pasquale Vassallo/Visuals Unlimited, Inc.)(Bing New Zealand)

Ane du Cotentin donkey (Equus asinus) in meadow with foal, Normandy, France (© J.-L. Klein & M.-L. Hubert/Minden Pictures)(Bing New Zealand)

Cyclist on Grossglockner High Alpine Road, Carinthia, Austria (© SIME/eStock Photo)(Bing New Zealand)

Beluga whales congregate near Somerset Island, Canada (© Norbert Rosing/Getty Images)(Bing New Zealand)

Mud volcanoes in Gobustan National Park, Azerbaijan (© Jane Sweeney/Getty Images)(Bing New Zealand)

Sand dunes and yellow poplar trees, Taklamakan Desert, China (© George Steinmetz/Corbis)(Bing New Zealand)

Snow-covered Joshua trees, Joshua Tree National Park, California (© Christopher Talbot Frank/Danita Delimont)(Bing New Zealand)

Silhouette of barn swallow in Berwickshire, Scotland (© Laurie Campbell/Alamy)(Bing New Zealand)

Roman Forum, Rome, Italy (© Marco Romani/Getty Images)(Bing New Zealand)

Colorful salt pits in the Saloum Delta of Senegal (© Bobby Haas/Getty Images)(Bing New Zealand)

Cliffs of Moher at sunset, County Clare, Ireland (© Patryk Kosmider/Shutterstock)(Bing New Zealand)

The North Falls in Silver Falls State Park, Oregon (© Matthew Kuhns/Tandem Stills + Motion)(Bing New Zealand)

Flaming sulfur from Kawah Ijen volcano, Indonesia (© Martin Rietze/Alamy)(Bing New Zealand)

Lambs frolicking in Christchurch, New Zealand (© Andrew Walmsley/Alamy)(Bing New Zealand)

Cherry blossoms in Dumbarton Oaks Gardens, Washington, D.C. (© Blaine Harrington III)(Bing New Zealand)

A ferry passes the Lyngen Alps in Norway (© Laurent Bouvet/Aurora Photos)(Bing New Zealand)

Hot air balloon over Uçhisar in Cappadocia, Turkey (© Coolbriere Photograph/Getty Images)(Bing New Zealand)

Supercell storm over West Point, Nebraska (© Mammoth HD)(Bing New Zealand)

West Indian manatees in the Crystal River, Florida (© Daniel J. Cox/Corbis)(Bing New Zealand)

View of the Eiger from the Grosse Scheidegg mountain pass, Switzerland (© SIME/eStock Photo)(Bing New Zealand)

Lupine grows in a burned forest at Yosemite National Park, California (© Robb Hirsch/Tandem Stills + Motion)(Bing New Zealand)

Wine country near Pokolbin in the Hunter Region, New South Wales, Australia (© R. Ian Lloyd/Masterfile)(Bing New Zealand)

Petrified wood in the Petrified Forest National Park, Arizona (© Ian Shive/Tandem Stills + Motion)(Bing New Zealand)

Mononoke Hime no Mori on Yakushima, Japan (© Hiroyuki Nagaoka/Getty Images)(Bing New Zealand)

Esperanza Base, Antarctica (© Bill Young/Danita Delimont)(Bing New Zealand)