Hong Kong-Zhuhai-Macau Bridge, China (© Evocation Images/Shutterstock)(Bing United States)

Statues of Phillis Wheatley and Abigail Adams in the Boston Women’s Memorial of Massachusetts (© Education Images/UIG via Getty Images)(Bing United States)

Vinicunca Mountain in the Cusco Region of Peru (© sorincolac/Getty Images)(Bing United States)

A fin whale in the waters off the Azores (© Luis Quinta/Minden Pictures)(Bing United States)

Elephant herd in Damaraland District, Namibia (© Michael Poliza/Getty Images)(Bing United States)

Members of the Wild Red Flame Mardi Gras Indians in New Orleans, Louisiana (© Chris Graythen/Getty Images)(Bing United States)

Cefalù on the Tyrrhenian coast in Sicily, Italy (© Tuul & Bruno Morandi/eStock Photo)(Bing United States)

Wildflowers in bloom at Lost Dutchman State Park in Arizona (© Tim Fitzharris/Minden Pictures)(Bing United States)

Grapes on the vine in Mendoza, Argentina, for the National Grape Harvest Festival (© javarman3/iStock/Getty Images Plus)(Bing United States)

Royal Highland Fusiliers playing the bagpipes on top of the Sydney Opera House (© James D Morgan/Shutterstock)(Bing United States)

Leopard snoozing in a tree in Namibia for National Napping Day (© M. Watsonantheo/SuperStock)(Bing United States)

Channels of the Rio Tinto in Spain (© Oscar Diez Martinez/Minden Pictures)(Bing United States)

A view of Uranus taken from spacecraft Voyager 2 in 1986 (© NASA)(Bing United States)

Circular agricultural fields in Morgan County, Colorado (© Jim Wark/Getty Images)(Bing United States)

At the Arch of Septimius Severus in the Roman Forum for the ides of March (© Pietro Canali/eStock Photo)(Bing United States)

Dublin, Ireland’s Government Buildings lit up for St. Patrick’s Day (© David Soanes Photography/Getty Images)(Bing United States)

Shoreline near Tofino on Vancouver Island, British Columbia, Canada (© Robert Postma/plainpicture)(Bing United States)

Fireworks at the Plaza del Ayuntamiento for Las Fallas festival in Valencia, Spain (© Helena G.H/Shutterstock)(Bing United States)

Crocus flowers (© Lorianne Ende/Getty Images)(Bing United States)

A baobab grove near Bandia Wildlife Reserve in Senegal (© Frans Lanting/plainpicture)(Bing United States)

Water wheels in the Tashkurgan Grassland, Tashkurgan Tajik Autonomous County, Xinjiang, China (© Ratnakorn Piyasirisorost/Getty Images)(Bing United States)

From NASA’s Terra satellite, an image of fallstreak holes in clouds over the southern United States (© NASA)(Bing United States)

Sea otters in Prince William Sound, Alaska, 30 years after the Exxon Valdez oil spill (© Patrick Endres/plainpicture)(Bing United States)

Athens for Greek Independence Day (© junnyphoto/Getty Images)(Bing United States)

Cherry blossoms over the Meguro River, Tokyo, Japan (© taketan/Getty Images)(Bing United States)

Sap-collecting buckets in Brome-Missisquoi, Quebec, Canada (© Roderick Chen/SuperStock)(Bing United States)

A rufous-tailed hummingbird in Costa Rica (© Juan Carlos Vindas/Getty Images)(Bing United States)

Auroville, India (© Vikram Ramakrishnan/Shutterstock)(Bing United States)

New York City’s Empire State Building is seen lit up before Earth Hour in 2011 (© Eric Thayer/Reuters)(Bing United States)

View of Paris, France, with the Eiffel Tower, taken from Notre-Dame Cathedral (© Funny Solution Studio/Shutterstock)(Bing United States)