Icicles on Lake Superior, Thunder Bay, Ont. (© Susan Dykstra/Design Pics/Getty Images)(Bing Canada)

Icicles on Lake Superior, Thunder Bay, Ont. (© Susan Dykstra/Design Pics/Getty Images)(Bing Canada)

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

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

Minnestimma Lake, Banff, Alta. (© Paul Zizka/Aurora Photos)(Bing Canada)

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

Cefalù on Mediterranean Sea in Sicily, Italy (© Tuul & Bruno Morandi/eStock Photo)(Bing Canada)

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

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

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

Leopard snoozing in a tree in Namibia for National Nap Day (© M. Watsonantheo/SuperStock)(Bing Canada)

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

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

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

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

Frontenac Castle in Old Quebec City (© mervas/Shutterstock)(Bing Canada)

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

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

Crocus flowers (© Lorianne Ende/Getty Images)(Bing Canada)

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

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

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

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

Athens, Greece, for Greek Independence Day (© junnyphoto/Getty Images)(Bing Canada)

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

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

Night scenery with full noon, Mount Assiniboine Provincial Park, B.C. (© Aurora Photos/Offset/Shutterstock)(Bing Canada)

Auroville, India (© Vikram Ramakrishnan/Shutterstock)(Bing Canada)

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

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