A porcini mushroom (© vnosokin/Getty Images)(Bing United States)
The 'Alien Egg Hatchery' in the Bisti/De-Na-Zin Wilderness, New Mexico (© Ian Shive/Tandem Stills + Motion)(Bing United States)
Anna's hummingbird (© Dee/Getty Images)(Bing United States)
The Regata Storica on the Grand Canal in Venice, Italy (© Alexander Duffner/Alamy)(Bing United States)
Park service employees inspecting Mount Rushmore National Memorial, South Dakota (© Universal Images Group via Getty Images)(Bing United States)
Humpback whales off the coast of Massachusetts (© Eric Kulin/plainpicture)(Bing United States)
Livraria Lello, a bookstore in Porto, Portugal (© Nido Huebl/Shutterstock)(Bing United States)
San Juan Islands, Washington (© Stephen Matera/Tandem Stills + Motion)(Bing United States)
River Avon in Bath, England (© Robert Harding World Imagery/Offset by Shutterstock)(Bing United States)
US flag on part of a 9/11 memorial overlooking the New York skyline from Exchange Place, Jersey City, New Jersey (© Gary Hershorn/Getty Images)(Bing United States)
Asian elephants in West Bengal, India (© Avijan Saha/Minden Pictures)(Bing United States)
Aerial view of the Venice Skatepark in Venice Beach, Los Angeles (© Ingus Kruklitis/Getty Images)(Bing United States)
Aldeyjarfoss waterfall in northern Iceland's interior landscape (© Jim Patterson/Tandem Stills + Motion)(Bing United States)
Artist Jesus 'CIMI' Alvarado painting his mural 'Fronterizos' on a wall of the El Paso Museum of Art, El Paso, Texas (© Paul Ratje/AFP via Getty Images)(Bing United States)
Palacio de Bellas Artes, Mexico City, Mexico (© Lukas Bischoff Photograph/Shutterstock)(Bing United States)
Benagil Cave in the Algarve, Portugal (© Michael Malorny/Offset by Shutterstock)(Bing United States)
Red panda at the Chengdu Panda Base in Sichuan province, China (© Biosphoto/Alamy)(Bing United States)
Le Castella at Capo Rizzuto, Italy (© mRGB/Shutterstock)(Bing United States)
Starlings in the wetlands between Denmark and Germany (© Viking/Alamy)(Bing United States)
'Rising Moon' lantern to celebrate the Mid-Autumn Festival in Hong Kong's Victoria Park (© Bobby Yip/Reuters)(Bing United States)
Baby white rhinoceros and mother in Hluhluwe–iMfolozi Park, South Africa (© Martin Harvey/Alamy)(Bing United States)
Neptune (© NASA/JPL)(Bing United States)
Cusco Cathedral on the Plaza de Armas, Cusco, Peru (© sharptoyou/Shutterstock)(Bing United States)
Escarpment Trail in Porcupine Mountains Wilderness State Park, Michigan (© Pat & Chuck Blackley/Alamy)(Bing United States)
The Mackenzie River in Canada emptying into the Beaufort Sea (© Norman Kuring, GSFC/NASA/USGS Landsat)(Bing United States)
Thorn bug, Pico Bonito National Park, Honduras (© Mac Stone/Tandem Stills + Motion)(Bing United States)
Mount Fuji in Japan (© The Asahi Shimbun/Getty Images)(Bing United States)
A wood bison near Behchoko, in the Northwest Territories, Canada (© Don Johnston/agefotostock)(Bing United States)
Container ship in San Pedro, California (© Cameron Venti/Getty Images)(Bing United States)
