Pond at Kleine Scheidigg, Jungfrau Region, Bernese Oberland, Switzerland

Mountain stream through a spruce forest, South Tyrol (Alto Adige), Italy

View of town centre and snow covered mountains in background at dusk, Courmayeur, Aosta Valley, Italian Alps, Italy

Lago dei Piani inferiore, Three Peaks Nature Park, Dolomites, South Tyrol (Alto Adige), Italy

Gorner Glacier on Monte Rosa massif, Zermatt, Canton Valais, Switzerland

Public library, St. Moritz, Canton of Grisons, Switzerland

Adult Dall sheep (Ovis dalli) in Denali National Park, Alaska, United States of America

Adult Dall sheep (Ovis dalli) in Denali National Park, Alaska, United States of America

View of the Polychrome Mountains from lookout point on the park road inside Denali National Park and Preserve, Alaska, United States of America

Aerial view of snow covered fir trees, Poland

View of snow-capped mountains in Neko Harbor in Andvord Bay, Antarctica, Polar Regions