Mendenhall Glacier, Alaska

Nauyaca Falls, Costa Rica

The Bungle Bungles in Purnululu National Park, Australia

Mountains & River

A tree in Afghanistan

Yamdrok-tso Lake, Tibet.

Luoping, Yunnan Province, China

Wadi Al-Hitan or 'whale valley' because of fossils found by scientists, in Egypt.

The sky in the ground. Yellowstone National Park

Son Doong Cave, Vietnam. The largest cave in the world.

The Georgian Bay Grotto, Ontario, Canada

Venice Falls in Maui Island, Hawaii

Dry season in the Salar De Uyuni, Bolivia