Grand Prismatic Spring on a sunny day

Indonesia, Bali

Ngoronggoro crater, Tanzania

Monmouth, New Jersey -

Painted Hills, Oregon

Møns Klint, Denmark

Morning sun in Waimea, Kauai County, Hawaii Canyon, Kauai

The colourful sandstone formations at White Pocket, AZ

Boracay beach sunset, Philippines

Snow on Sandstone Monocline, West of Kayenta, Navajo Nation, Arizona

Iliamna Volcano, Alaska. Photo by Michael Melford

A river amidst a forest, Xinjiang, China

Small village in Vang Vieng, Laos