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

McWay Falls, Big Sur, California

Autumn in Adirondacks, New York

North Antarctica

Cliffs of Moher, Ireland

Cloudy water streaming down a valley of granite in Fitz Roy mountain

Old Man's Cave Ohio, US

Letchworth State Park; Castile, NY, USA

The Lion Rock - Ancient City of Sigiriya in Sri lanka

Grand Prismatic Spring, Yellowstone, WY

The Springs Resort and Spa at Arenal, Costa Rica

Hokitika Gorge, West Coast, New Zealand

Sala, Sweden at 2am