Ice Caves of Kamchatka, Russia

After A Spring Thunderstorm. Goblin Valley, Utah, USA.

Segara Anak, crater lake on Mount Rinjani in Indonesia

Flagstaff, AZ

Kuang Si Falls - Luang Prabang, Laos

Blue Ice Cave, Antarctica, December 2011.

The sky in the ground. Yellowstone National Park

Mayon Volcano's Perfect Cone, Philippines

Dragon Falls, Venezuela

Hanmer Springs Night Sky, New Zealand

Tatry mountains, Poland

Promthep Cape, Thailand -

Ngarchelong, Palau