Tiny gecko on leaf (© Darren Greenwood/Alamy)

Confederation Bridge, Prince Edward Island, Canada (© Henryk Sadura/Getty Images)

Sandstone butte in Capitol Reef National Park, Utah (© Amazing Aerial Premium/Shutterstock)

Helmcken waterfall in Wells Gray Provincial Park, British Columbia, Canada (© Laurens Verhoeven/iStock/Getty Images)

Tintern Abbey, Wales (© matthibcn/Getty Images)

Atlantic puffin, Iceland (© Peter Hering/Minden Pictures)

Kagami-ike (Mirror Pond), Nagano, Japan (© Shoji Fujita/Getty Images)

Bodie Island Lighthouse, Nags Head, North Carolina (© Michael Ver Sprill/Getty Images)

Highways in Taipei, Taiwan (© Tavarius/Shutterstock)

Indigenous artwork, Ngaruwanajirri Art Centre, Wurrumiyanga, Bathurst Island, Australia (© Robert Wyatt/Alamy)

A lion in Maasai Mara, Kenya (© Scott Davis/Tandem Stills + Motion)

Gwaii Haanas National Park Reserve and Haida Heritage Site, British Columbia, Canada (© Don Johnston_WC/Alamy Stock Photo)

Elephant family in Amboseli National Park, Kenya (© Ibrahim Suha Derbent/Getty Images)

Perseid meteor shower, Cottonwood Canyon State Park, Oregon (© Joshua Meador/Tandem Stills + Motion)

Piazza IX Aprile, Taormina, Sicily, Italy (© rudi1976/Alamy)

Overseas Highway in the Florida Keys (© Evgeny Vasenev/Cavan Images)

'Avatar Mountains,' Zhangjiajie National Forest Park, China (© Amazing Aerial Premium/Shutterstock)

The Canadian International Air Show in Marilyn Bell Park (© Melissa Renwick/Contributor/Getty Images)

Squirrel looking into the lens of a camera (© Alfredo Piedrafita/Getty Images)

Start Point Lighthouse, South Devon, England (© Guy Edwardes/Minden Pictures)

Emerald Lake, South Klondike Highway, Yukon, Canada (© artherng/Getty Images)

Amphitheatre of El Jem, Tunisia (© Westend61/Getty Images)

Skógafoss waterfall, Iceland (© Maridav/Shutterstock)

Shark Fin Cove, Davenport, California (© Jeff Lewis/Tandem Stills + Motion)

Lower Yellowstone Falls, Yellowstone National Park, Wyoming (© Tim Fitzharris/Minden Pictures)

Berlin Cathedral and Museum Island, Berlin, Germany (© Rudy Balasko/Shutterstock)

Seongsan Ilchulbong, a tuff cone on Jeju Island, South Korea (© Quynh Anh Nguyen/Getty Images)

Fort Lovrijenac, West Harbour, Dubrovnik, Croatia (© Benny Marty/Shutterstock)

Zelenci Nature Reserve, Slovenia (© Andrey Danilovich/Getty Images)

Whale shark, Ningaloo Reef, Western Australia (© Jason Edwards/Getty Images)

Saguaro cacti, Ironwood National Monument, Arizona (© Jack Dykinga/Minden Pictures)