Skylight into an active lava tube, Hawaii Volcanoes National Park, Hawaii (© Tom Schwabel/Tandem Stills + Motion)(Bing Canada)

Fjord with fog, Khutzeymateen Provincial Park (© Westend61 GmbH/Alamy)(Bing Canada)

Red-necked grebes in Germany (© Edo van Uchelen/Minden Pictures)(Bing Canada)

Farmers collecting the water lilies in the Satla marshland near Bagdha, Barishal, Bangladesh (© Mustasinur Rahman Alvi/Future Publishing via Getty Images)(Bing Canada)

Edinburgh city skyline at night, Scotland (© Suranga Weeratuna/Alamy)(Bing Canada)

Salt flats in San Francisco Bay (© Jeffrey Lewis/Tandem Stills + Motion)(Bing Canada)

Dusk falls over Vancouver Island viewed from an islet in Nuchatlitz Provincial Park, British Columbia (© plainpicture/Design Pics/Ron Watts)(Bing Canada)

Aerial view of the island Pantaleu near Sant Elm, Mallorca, Spain (© Dimitri Weber/Amazing Aerial Agency)(Bing Canada)

Cueva de las Manos (Cave of the Hands) in Santa Cruz, Argentina (© Adwo/Alamy)(Bing Canada)

Joshua trees in Joshua Tree National Park, California (© Tim Fitzharris/Minden Pictures)(Bing Canada)

Mount Tsubakuro near Azumino, Nagano, Japan (© Joshua Hawley/Getty Images)(Bing Canada)

Herd of African elephants in Amboseli National Park, Kenya (© Susan Portnoy/Shutterstock)(Bing Canada)

Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota (© Dukas/Universal Images Group via Getty Images)(Bing Canada)

Panther chameleon in Amber Mountain National Park, Madagascar (© Christian Ziegler/Minden Pictures)(Bing Canada)

Chittorgarh Fort, India (© Anand Purohit/Getty Images)(Bing Canada)

A stream of water flows through the Sasquatch Provincial Park, Fraser Valley, B.C. (© Jason Wilde/Tandem Stills + Motion)(Bing Canada)

Underwater river scene with freshwater plants and tetra fish, Aquário Natural, Rio Baia Bonito, Mato Grosso do Sul, Brazil (© Michel Roggo/Minden Pictures)(Bing Canada)

Island of Källö-Knippla in the archipelago of Gothenburg, Sweden (© Martin Wahlborg/Getty Images)(Bing Canada)

The Swing Tower at CNE, Toronto (© Brett Ida/Shutterstock)(Bing Canada)

Beehives in the Muniellos Nature Reserve in the province of Asturias, Spain (© ABB Photo/Shutterstock)(Bing Canada)

Faro de Playa Lago, Costa da Morte, Muxia, Galicia, Spain (© Carlos Fernandez/Getty Images)(Bing Canada)

A burrowing owl chick and adult in South Florida (© Carlos Carreno/Getty Images)(Bing Canada)

Menton, France (© Flavio Foglietta/Getty Images)(Bing Canada)

Wheat field in Ukraine (© Yuriy Kulik/Getty Images)(Bing Canada)

Penzance in Cornwall, England (© Murray Bosley Photography/Getty Images)(Bing Canada)

Kitesurfers and windsurfers near the Pelješac Peninsula, Croatia (© helivideo/Getty Images)(Bing Canada)

Boundary Trail in Mount St. Helens National Volcanic Monument, Washington (© Don Geyer/Alamy)(Bing Canada)

Bearded reedlings at a wetland in Flevoland, Netherlands (© Gert-Jan IJzerman/Minden Pictures)(Bing Canada)

Baltic Sea in Estonia (© fotoman-kharkov/Getty Images)(Bing Canada)

Regional Park of Migliarino, San Rossore, Massaciuccoli, Italy (© Stefano Valeri/Alamy)(Bing Canada)

Blue linckia sea stars at New Ireland in Papua New Guinea (© Jurgen Freund/Minden Pictures)(Bing Canada)