Piercy Island, Bay of Islands, New Zealand

The Fairy Pools on the Isle of Skye, Scotland

Cala Dogana, Levanzo, Italy

Tapuaetai

Akhtamar Island, Lake Van

Old Man's Cave - Hocking Hills, Ohio

Luoping, Yunnan Province, China

El sótano de las golondrinas, San Luis Potosí, México

Avalanche Lake, MT

Morondova, Madagascar

Cinque Terre, Italian Riviera

Volcanic Iceland

Buckskin Gulch, Kolob Canyon, Utah