Pebbled beach of Kaikoura, New Zealand

The 12 Apostles, Australia

Velka Fatra mountains, Slovakia

Erosion on the slopes of a volcano near Ankisabe, Madagascar

Garmisch-Partenkirchen, Germany

Jordan Pond and Bubble Rock, Acadia National Park, ME

Devetashka Cave, Bulgaria

Sandstone pillars, Meteora, Greece

Qaqortoq, Greenland

Mono Lake, California 2

Double Rainbow at Lake Crescent, Olympic National Park

Havasu falls, Arizona

Tatry mountains, Poland