Green River Cliffs, Wyoming

Point Lobos, Monterey, California

The Grand Canyon of the Yellowstone

Grand Canyon of the Colorado River

Cliffs of the Upper Colorado River, Wyoming Territory

The Juniata, Evening

Golden Gate, Yellowstone National Park

A View of Venice

Mist in Kanab Canyon, Utah

Grand Canyon of Arizona at Sunset

The Much Resounding Sea

Mountain of the Holy Cross

Above Tower Falls, Yellowstone

River Landscape in Wales

The Fountain of Vaucluse

Mist in Kanab Canyon, Utah

Alpine landscape

Mountain of the Holy Cross

Llwyngwynedd and Part of Llyn-y-ddina Between Capel Curig and Beddegelert, North Wales

From Kvamsøy in the Sognefjord

Toltec Gorge, Colorado

Coast of Syria

Castle on a Cliff with Stormy Sea

The Grand Canyon: Head of the Old Hance Trail