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

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

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

View of Orchha, Madhya Pradesh, India (© Holly Barber/Alamy Stock Photo)

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

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

Grapes on the vine in Mendoza, Argentina (© javarman3/iStock/Getty Images Plus)

Minnestimma Lake, Banff, Alberta, Canada (© Paul Zizka/Aurora Photos)

Leopard snoozing in a tree in Namibia (© M. Watsonantheo/SuperStock)

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

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

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

Arch of Septimius Severus in the Roman Forum (© Pietro Canali/eStock Photo)

Chital (spotted deer), Kanha National Park, Madhya Pradesh, India (© Pete Oxford/Minden Pictures)

Light from sunrise through a sea cave on the Isle of Skye, Scotland (© Luca Benini/PLM Collection/Offset)

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

Warbling white-eye among plum blossoms in Yokohama, Japan (© e185rpm/Adobe stock)

Crocus flowers (© Lorianne Ende/Getty Images)

Baobab trees near Bandia Wildlife Reserve in Senegal (© Frans Lanting/plainpicture)

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

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

Sea otters in Prince William Sound, Alaska (© Patrick Endres/plainpicture)

Athens, Greece (© junnyphoto/Getty Images)

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

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

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

Auroville, India (© Vikram Ramakrishnan/Shutterstock)

Alpine eucalypt bark in Tasmania, Australia (© Australian Scenics/Getty Images)

View of Paris, France, with the Eiffel Tower (© Funny Solution Studio/Shutterstock)