High Peaks Trail at Pinnacles National Park, San Benito County, California, USA (© yhelfman/Getty Images)

Pointe du Diable, Saint-Pierre, Réunion Island (© MONTICO Lionel/Alamy)

Zahara de la Sierra, Cadiz, Spain (© SEN LI/Getty Images)

Cottage and Tŵr Mawr lighthouse, Ynys Llanddwyn, Wales, United Kingdom (© Westend61 on Offset/Shutterstock)

Crescent-tail bigeye fish in the Great Barrier Reef, Australia (© Fred Bavendam/Minden Pictures)

Heri es-Swani in Meknes, Morocco (© Calin Stan/Shutterstock)

Abraham Lake, Alberta, Canada (© Basic Elements Photography/Getty Images)