Milky Way above Crater Lake, Oregon (© Nagesh Mahadev)(Bing United States)
Aerial view of Gardens by the Bay and the Supertrees Grove, Singapore City, Singapore (© SIME/eStock Photo)(Bing United States)
Western Concourse at King‘s Cross station, London, England (© Think James Photo/Gallery Stock)(Bing United States)
Fire hoses hanging to dry (© PBNJ Productions/Corbis)(Bing United States)
Close-up of a blue agave plant (© Don Paulson Photography/Superstock)(Bing United States)
Highland cattle in a field of heather on the Isle of Skye, Scotland (© Frank Krahmer/Corbis)(Bing United States)
Roque de los Muchachos Observatory on La Palma in the Canary Islands, Spain (© Uli Hamacher/Getty Images)(Bing United States)
Tadpoles in Cedar Lake, near Campbell River on Vancouver Island, British Columbia, Canada (© Eiko Jones Photography)(Bing United States)
Pelicans in flight, near Bandon, Oregon (© Cindy Kassab/Corbis)(Bing United States)
Detail of a steam engine at Steamtown National Historic Site, Scranton, Pennsylvania (© Ian Shive/Aurora Photos)(Bing United States)
Polar bear mother and cubs near Hudson Bay, Canada (© Kennan Ward/Corbis)(Bing United States)
Anhumas Abyss cave near Bonito, Mato Grosso do Sul, Brazil (© Marcio Cabral/360cities.net)(Bing United States)
Cloud Gate sculpture by Anish Kapoor, Millennium Park, Chicago, Illinois (© Kjel Larsen)(Bing United States)
The planet Mercury (© NASA)(Bing United States)
Aerial view of the Great Barrier Reef, Queensland, Australia (© Grant Faint/Getty Images)(Bing United States)
A lake in Jotunheimen National Park, Norway (© Sylvestre Popinet/Christel Freidel/Minden Pictures)(Bing United States)
The USS San Francisco (SSN-711) at sea (© Steve Kaufman/Corbis)(Bing United States)
Notre-Dame Cathedral Basilica of Ottawa, Ontario, Canada (© Kevin O´Hara/age fotostock)(Bing United States)
Workers in terraced rice fields, Bali, Indonesia (© Denis Waugh/Getty Images)(Bing United States)
Bloom of moon jellyfish (© Hiroya Minakuchi/Minden Pictures)(Bing United States)
City of Jaén in Andalusia, Spain (© Rolf Hicker Photography/Alamy)(Bing United States)
Green sea turtle being cleaned by reef fish off the Kona Coast, Big Island, Hawaii (© Masa Ushioda/Aurora Photos)(Bing United States)
Brooklyn Bridge and Manhattan skyline, New York City (© Robert Harding World Imagery/Alamy)(Bing United States)
Lake in the Ounianga Serir, northern Chad (© George Steinmetz/Corbis)(Bing United States)
Singapore’s business district (© Albert Rene Ibanez)(Bing United States)
Marine Corps War Memorial in Arlington, Virginia (© Paul Souders/Corbis)(Bing United States)
Aerial view of glacial ice on the River Thjorsa (Þjórsá) in southern Iceland (© David Yarrow Photography/Getty Images)(Bing United States)
Everest Base Camp at Khumbu, Nepal (© Kent Harvey/Tandem Stock)(Bing United States)
A flame goby guards her eggs in the Kaafu Atoll of the Maldives (© Jason Isley/Scubazoo)(Bing United States)
Lake Wolfgangsee and the town of St. Wolfgang in Salzkammergut, Austria (© GT Image/Getty Images)(Bing United States)