South Shore Snæfellsnes Penninsula, Iceland

Glendalough, Ireland

The coastline of Portugal

Mirror Lake, Yosemite National Park

Tzekos Villas, Santorini, Greece

Smith Rock, OR

Koko Head (Kohelepelepe), Oahu, HI

Caddo Lake, Texas

Nissersø, Norway

Banff, Canada

Natural limestone structures at Nambung National Park, Western Australia

Hamilton Pool, Texas

St. Thomas, U.S. Virgin Islands