Bear Rocks Preserve, West Virginia, USA

Leavenworth, Washington

Laguna Miscanti at 4,200 m.a.s.l., Chile

Hill fortress of Sigiriya, Sri Lanka

Stream at Muir Woods

Aldeyjarfoss in Skjálfandafljót, Iceland

Natural limestone structures at Nambung National Park, Western Australia

Colmar, France

Durdle Door, United Kingdom

Desert remnants of the Aral Sea

Cottage in Wales

Ohio, Hurricane ridge, WA

Hang son doong, Vietnam