Landscape view of river and waterfall, Selfoss, Arnessysla, Iceland

Iceland waterfall

Iceland highlands

Iceland waterfall

USA, Oregon, High angle view of Columbia River Gorge

Iceland highlands

Cyclist looking over cliff

Colorado River, Glen Canyon National Recreation Area, Arizona-Utah, USA

Colorado River, Glen Canyon National Recreation Area, Arizona-Utah, USA

River running past steep rugged cliffs

Water surrounding rock formation, elevated view

USA, Oregon, Columbia River Gorge

Antique Illustration of a View of a River with Waterfall, "Cory-Lin, on the River Clyde" (Location: Scotland)

Antique Illustration of a View of a Waterfall in the Rhine River. (Location: Germany)

Antique Engraving of a Canyon View with a Waterfall, "Falls of the Polufuca on the River Liffey" (Location: Ireland)

Antique Woodcut Illustration of a View of a Cascade running through a Forest, "Glen of the Trient" Location: European Alps)

View of river and canyon at Fjadrargljufur, Iceland