Marble Caves. Lake Bueno Aires, Chile

Bowling Rocks Preserves, Jupiter, Florida

Crater Lake, Oregon

Antigua, Guatemala

Zlatibor, Serbia

Volcanic Iceland

Bimmah Sinkhole, Oman

Moeraki Boulders, NZ

Lake Minnewanka near Banff AB, Canada

Grand Lac seen from Col de la Ponsonnière, Hautes-Alpes, France

Aogashima Island, Japan

Bristle Cone Pine Forest, White Mountains, California

Giethoorn, Netherlands