Stack of rocks in mountains, Santa Caterina Valfurva, Bormio, Italy

Rock formation and low cloud, Dolomites, Italy

Rock formation and low cloud, Eggishorn, Switzerland

Mountain range, Davos, Graubnden, Switzerland

Hiker, Davos, Graubnden, Switzerland

"Snow covered rocks and mountains, Sarsy Village, Sverdlovsk Oblast, Russia"

"View of low cloud over mountains, Massa-Carrara, Tuscany, Italy"

Landscape with rocks, forest and distant mountains, Ural Mountains, Russia

Rear view of young man hiking in valley, Ural mountains, Russia

View of boulders

View of cliffs

excursion to mountains

Single male elephant browsing in late afternoon sunshine with the red rocks of Etendeka mountains beyond, side view, Palmwag Concession, Damaraland, Namibia, South West Africa:

Rear view of woman hiking alone in rugged landscape, Ural Mountains, Russia

Rear view of three hikers hiking valley boulders, Ural mountains, Russia

"View of mountains and stacked logs, Eckbauer bei Garmisch, Bavaria, Germany"

Grasslands and mountains

View of patterned penguin

A man using binoculars looking out

A woman with a stack of Christmas gifts walks down a busy shopping street

A man carrying a stack of dollar bills

Side view of a girl ascending

Overhead view of a vast desert wilderness.

Antique Illustration (wood engraving) of a View of Twin Mountain Peaks, "The Wellhorn from Rosenlaui (Location: Switzerland)

Front view of a graduate woman standing by the campus

Painting of a bird by the sea

Illustration of two people holding puzzle pieces with symbols on them

Teacher showing globe to student

Trees around a small river with large mountains in the background

Stack of painted rocks, view of mountains