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

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

Cow jumping in field (© Clarissa Leahy/Plain Picture) © (Bing United Kingdom)

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

Battersea Power Station, London, lit up at night (© Alex Holland/Corbis) © (Bing United Kingdom)

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

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

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

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

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

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

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

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

Angel of the North, Gateshead, Tyne and Wear, England (© John Short/Age Fotostock) © (Bing United Kingdom)

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

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

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

The Russian space station Mir, in orbit (© Science Source/Photo Researchers) © (Bing United Kingdom)

Red wheels of steam train (© Svetlana Gryankina/Age Fotostock) © (Bing United Kingdom)

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

Clifford’s Tower, York, England (© Mark Sunderland/Age Fotostock) © (Bing United Kingdom)

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

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

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

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

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