Richat Structure (Eye of the Sahara)

Stumpy Lake

Dean's Blue Hole, Long Island, Bahamas.

St Magdalena Village in Val Di Funes, South Tirol, Italy

One of my favorite place in the world, the Dolomites, Italy

At Hoover Dam, Nevada/Arizona

Sunrise over Dolly Sods, West Virginia

El Yunque Rainforest, Puerto Rico

Slave's Edge near Leitisvatn in the Faroe Islands

Zhangjiajie National Forest Park, China 3

Natural limestone structures at Nambung National Park, Western Australia

Saar River, Germany

Varmland, Sweden