Old surfboards lined up as a fence near Paia, Maui, Hawaii

Little blue heron in Cuba

The shoreline of Olympic Coast National Marine Sanctuary, Washington state

Petit Minou Lighthouse in the roadstead of Brest, Finistère, France

Rub' al Khali desert on the border of Oman and the Emirate of Dubai

Giant manta ray and a photographer off the Ningaloo Coast, Australia

The Old Town of Dubrovnik, Croatia

Stairway to Heaven trail in Wawayanda State Park, New Jersey

Silhouette of Shambhala roller coaster at sunset in PortAventura Park, Salou, Tarragona, Spain

Strandbad Tiefenbrunnen, a public pool on the shore of Lake Zürich, Switzerland

Ubehebe Crater in Death Valley National Park, California

Horned ghost crab, Grand Anse, Praslin Island, Seychelles

African bush elephant herd, Okavango Delta, Botswana

The Perseid meteor shower photographed at the Dinosaur Museum of Erenhot in Inner Mongolia, China

The Smithsonian Arts and Industries Building in Washington, DC

Māori rock carving by Matahi Whakataka-Brightwell, Lake Taupo, North Island, New Zealand

Elizabeth Quay Bridge in Perth, Australia

Salt cones on Salar de Uyuni, Bolivia

Salisbury Crags in Holyrood Park overlooking Edinburgh, Scotland

The Sky Pool at Embassy Gardens in London, England