Moraine Lake in Banff National Park, Alberta, Canada (© Getty Images)(Bing Australia)

Salar De Uyuni, Bolivia (© Kazuyoshi Nomachi/Corbis)(Bing Australia)

The East Coast of the United States as seen from the International Space Station (© NASA)(Bing Australia)

Yellow-headed blackbird in Flathead Valley, Montana (© Steven Gnam/Tandem Stock)(Bing Australia)

Fall colours on Pinecone Ridge near Park City, Utah (© Patrick Brandenburg/Tandem Stock)(Bing Australia)

Bioluminescence in the Gippsland Lakes, Victoria, Australia (© Stocktrek Images/Getty Images)(Bing Australia)

Red deer in Richmond Park, a national nature reserve and deer park in London, England (© NHPA/SuperStock)(Bing Australia)

Skerwink Trail, Bonavista Peninsula, Newfoundland Island, Canada (© Reinhard Schmid/4Corners)(Bing Australia)

Harriman State Park, Hudson River Valley, New York (© Arnab Banerjee/Gallery Stock)(Bing Australia)

Palace of Fine Arts in the Marina District of San Francisco, California (© vns24@yahoo.com/Getty Images)(Bing Australia)

Aerial view of the coastline at Sand Point, Somerset, England (© Richard Cooke/Alamy)(Bing Australia)

Inside the Bund Sightseeing Tunnel under the Huangpu River in Shanghai, China (© Gavin Hellier/Alamy)(Bing Australia)

Aerial view of a volcano caldera, Isabela Island, Galápagos Islands, Ecuador (© Frans Lan/age fotostock)(Bing Australia)

Long-tailed widowbird male in breeding plumage, Marievale Bird Sanctuary, South Africa (© Richard Du Toit/Corbis)(Bing Australia)

Studena Dam, Struma River, Bulgaria (© Ivan Pendjakov/age fotostock)(Bing Australia)

Heceta Head Light, near Florence, Oregon (© Craig Tuttle/Corbis)(Bing Australia)

Long-exposure photograph of fireflies in a forested area near Nagoya City, Japan (© Yume Cyan)(Bing Australia)

Raised boardwalk and white birch trees in Sackville Waterfowl Park, Sackville, New Brunswick, Canada (© Dale Wilson/Getty Images)(Bing Australia)

Ground-level view of the Sydney Opera House in New South Wales, Australia (© Harald Deppeler/National Geographic My Shot/National Geographic Society/Corbis)(Bing Australia)

Barchan dunes along the Pacific Coast, Guerrero Negro, Mexico (© George Steinmetz/Corbis)(Bing Australia)

Red-eyed or gaudy leaf frog with mushrooms, in the rainforest of Selva Verde, Costa Rica (© Tandem Stock)(Bing Australia)

Phosphate crystals magnification (© Steve Gschmeissner/Getty Images)(Bing Australia)

Quinta da Regaleira in Sintra, Portugal (© benitojuncal/Getty Images)(Bing Australia)

The Swiftwater Bridge crosses the Wild Ammonoosuc River near Bath, New Hampshire (© Daniel Dempster Photography/Alamy)(Bing Australia)

Termite mounds and snappy gums in savannah grassland, Gulf Country, Queensland, Australia (© Bill Bachman/Alamy)(Bing Australia)

Aerial view of the Tobago Cays group of islands, St. Vincent and the Grenadines (© Yann Arthus-Bertrand/Corbis)(Bing Australia)

Cares Gorge (Garganta del Cares) footpath, Picos de Europa National Park, Castilla y Leon, Spain (© Sebastian Wasek/SuperStock)(Bing Australia)

Butterflies resting on a caiman in the Pantanal, Brazil (© Frank Lukasseck/Corbis)(Bing Australia)

Multicoloured cobblestones in the Spanish Village Art Center in Balboa Park, San Diego (© Marco Brinkman)(Bing Australia)

Montage of scenes from horror films, from left to right, “Friday the 13th Part II” (1981), “Psycho” (1960), “Poltergeist” (1982), “The Shining” (1980), “Halloween” (1978), and “The Amityville Horror” (1979) (© Ben Erickson/Gary Spradling/Getty Images)(Bin

An ant on the anther of a yellow and orange flower in Australia (© Steve Passlow/Flickr/Getty Images)(Bing Australia)