Quebec Bridge, Saint Lawrence River, Canada (© Ronald Santerre/Getty Images)

Jöriseen lakes in the Silvretta Alps, Switzerland (© Florin Baumann/Getty Images)

Wildebeests in the Maasai Mara, Kenya (© Matt Polski/Getty Images)

Mayan ruins in Tikal, Guatemala (© THP Creative/Getty Images)

Sasso Caveoso, Basilicata, Matera, Italy (© Riccardo Spila/eStock)

Barley and cornflowers, Nordhausen, Germany (© Mandy Tabatt/Getty Images)

Seal pup, Lundy Island, England (© Henley Spiers/Minden Pictures)

Delicate Arch, Arches National Park, Utah (© Mark Brodkin Photography/Getty Images)

Kauehi atoll, Tuamotu Archipelago, French Polynesia (© WaterFrame/Alamy)

Henningsvær Stadium, Norway (© Morten Falch Sortland/Getty Images)

Wild lupine in purple and blue (© silverjohn/Getty Images Plus)

Mannheim Water Tower, Germany (© tichr/Getty Images)

White-tailed deer doe and newborn fawn, Montana, USA (© Donald M. Jones/Minden Pictures)

Morro Jable and Playa del Matorral, Fuerteventura, Canary Islands, Spain (© Gavin Hellier/Getty Images)

Canoe paddling in Okefenokee National Wildlife Refuge, Florida, USA (© Brad Beck/Tandem Stills + Motion)

Natural Bridges State Park in Santa Cruz, California, USA (© Jim Patterson/Tandem Stills + Motion)

La Manga, Murcia, Spain (© SOMATUSCANI/Getty Images)

Sumatran rhinoceros, Way Kambas National Park, Indonesia (© Cyril Ruoso/Minden Pictures)

European honey bees in Sheffield, England (© Deborah Vernon/Alamy)

Seine River, Paris, France (© StockByM/Getty Images)

Arenal Volcano, Monteverde, Costa Rica (© Kevin Wells/Getty Images)

Meldon Hill, Dartmoor National Park, Devon, England (© AWL Images/Danita Delimont)

The Old Fortress of Corfu (© Netfalls Remy Musser/Shutterstock)

The North Atlantic island village of Saksun (© miroslav_1/Getty Images)

Wat Sri Sawai in Sukhothai Historical Park (© Casper1774 Studio/Shutterstock)

Plant life in Namibia (© Fotofeeling/DEEPOL by plainpicture)

Tegalalang terrace farms in Ubud, Indonesia (© Cavan Images/Adobe Stock)

Grand Cul-de-Sac Marin, Guadeloupe National Park, Lesser Antilles (© Hemis/Alamy)

Playa del Amor, Marietas Islands, Puerto Vallarta, Mexico (© ferrantraite/Getty Images)

Sea otter pup, Prince William Sound, Alaska (© Donald M. Jones/Minden Pictures)