Alpine marmots in Grossglockner, Austria (© Westend/Superstock) © (Bing Canada)

White-lipped tree frog (Litoria infrafrenata) on a heliconia flower in Cairns, Queensland, Australia (© Andrew Watson/ Getty Images) © (Bing Canada)

Unnamed lake in the southern Cariboo region of British Columbia, Canada (© Chris Harris/Corbis) © (Bing Canada)

Monument to the Revolution, Mexico City (©Thom Lang/Corbis) © (Bing Canada)

Fly Geyser near Black Rock Desert , Nevada (© Ropelato Photography/Getty Images) © (Bing Canada)

A pair of bottlenose dolphins (Tursiops truncatus) breaches in the Moray Firth, Scotland (© Charlie Phillips/Aurora Photos) © (Bing Canada)

Lake Bled, Slovenia (© Marko Trebusak/Alamy) © (Bing Canada)

Bungle Bungle Range in Purnululu National Park, Australia (© Theo Allofs/Corbis) © (Bing Canada)

Lantern decorations at Dìtán Park in Beijing, China (© John Warburton Lee/Superstock) © (Bing Canada)

Iguazu Falls National Park at the borders of Argentina and Brazil (© Frans Lanting/Corbis) © (Bing Canada)

French Quarter in New Orleans, Louisiana (© Flirt/SuperStock) © (Bing Canada)

A remote beach in the Similan Islands, Thailand (© Clipcanvas) © (Bing Canada)

Little owls roost in Extremadura, Spain (© Werner Bollmann/age fotostock) © (Bing Canada)

Detail of the underside of a giant Amazon water lily, Amazonas State, Brazil (© PhotoLink/Getty Images) © (Bing Canada)

Kraków, Poland (© Henryk T. Kaiser/age fotostock) © (Bing Canada)

Empty seed pods from a kassod tree in the district of Anantapur, Andhra Pradesh, India (© Tim Gainey/Alamy) © (Bing Canada)

Radcliffe Camera, Oxford, England (© Paul Hardy/Corbis) © (Bing Canada)

Bear paw clam near Rongelap Atoll in the Marshall Islands (© Andre Seale /Aurora Photos) © (Bing Canada)

Dovecotes in the Katara Cultural Village in Doha, Qatar (© Omar Chatriwala/Getty Images) © (Bing Canada)

Quesillococha Lake, Peru (© Arroz Marisco/360cities.net) © (Bing Canada)

Polar bear near Hudson Bay in Churchill, Manitoba, Canada (© Galen Rowell/Corbis) © (Bing Canada)

Bridge in the Huangshan mountain range, Anhui Province, China (© Frank Lukasseck/Corbis) © (Bing Canada)

Black herons in the Moremi Game Reserve, Botswana (© Ben Cranke/Getty Images) © (Bing Canada)

Otter Cliffs and sea stones in Acadia National Park, Maine (© Nate Parker Maine Photography/Getty Images) © (Bing Canada)

Alex Cole Cabin at Jim Bales Place, Roaring Fork Motor Nature Trail in the Great Smoky Mountains National Park, Tennessee (© Adam Jones/Getty Images) © (Bing Canada)

A herd of elephants in the Masai Mara National Reserve, Kenya (© Getty Images) © (Bing Canada)