Vatnajökull, Iceland

Buley Rockholes, Litchfield NP, NT, Australia

Blue Ice Cave, Antarctica, December 2011.

InterContinental Resort Tahiti, French Polynesia

Turquoise Crater Lake - Java, Indonesia

Midnight sun by a lake in Troms, Norway. Photo taken at 03:00 (3 am).

The Everglades

Grand Prismatic Spring, Yellowstone National Park.

El sótano de las golondrinas, San Luis Potosí, México

Saar River, Germany

Yosemite Highlands in July

Ruins of Whitby Abbey Monastery. North Yorkshire, England

The Giants Causeway, North Ireland