Dark clouds and sunset lights frame the rocky peaks of Muottas Muragl, St. Moritz, Canton of Graubunden, Engadine, Switzerland, Europe

Church of San Gian with the snowy peaks in background, Celerina, St. Moritz, Engadine, canton of Graubunden, Switzerland, Europe

Spring bloom of Persicaria bistorta at Lej da Champfer, St. Moritz, Upper Engadine, Canton of Graubunden, Switzerland, Europe

Wood bridge on the alpine river surrounding the village of Davos, Sertig Valley, canton of Graubunden, Switzerland, Europe

Snowy peaks and Crocus flowers during spring bloom, Davos, Sertig Valley, canton of Graubunden, Switzerland, Europe

Flowing water of a creek, Alp Da Cavloc, Maloja Pass, Bregaglia Valley, Engadine, Canton of Graubunden, Switzerland, Europe

Rainbow over Chiesa Bianca, Maloja, Bregaglia Valley, Engadine, Canton of Graubunden (Grisons), Switzerland, Europe

White and fuchsia coloured rhododendrons, Spluga Pass, canton of Graubunden, Switzerland, Europe

Alpine village of Soglio at sunset, Bregaglia Valley, Maloja Region, Canton of Graubunden, Switzerland, Europe

City of Thun at night, Canton of Bern, Switzerland, Europe

Historical centre at dusk, Thun, Canton of Bern, Switzerland, Europe

Elevated view of tourists riding downhill scooters on mountain path, Celerina, Engadine, canton of Graubunden, Switzerland, Europe

Star trail in the night sky above Aletsch Glacier, Bernese Alps, Valais canton, Switzerland, Europe

Panoramic of snow capped mountains of Upper Engadine from Piz Nair, canton of Graubunden, Switzerland, Europe

Aerial view of Breithorn, Matterhorn, Dent Blanche, Obergabelhorn, Zinalrothorn and Weisshorn, Zermatt, Valais canton, Switzerland, Europe

Stars over the snowcapped mountains and Kulmhotel Gornergrat, Zermatt, canton of Valais, Switzerland, Europe

Hut on mountain ridge above lake Oeschinensee covered by mist, Bernese Oberland, Kandersteg, canton of Bern, Switzerland, Europe

Forest of larch trees surrounding the snowcapped Piz Bernina and Palu in autumn, Morteratsch, Graubunden Canton, Switzerland, Europe

View to Vitznau and Rigi Mountain, Lake Lucerne, Canton Schwyz, Switzerland, Europe

View over Lake Lucerne to Oberbauen and Niederbauen Mountain, Canton Uri, Switzerland, Europe

Restaurant at Buergenstock Mountain, Canton Niewalden, Lake Lucerne, Switzerland, Europe

Cafe at mountain hotel Rigi-Kulm, Rigi-Kulm Mountain, Lake Lucerne, Canton Lucerne, Switzerland, Europe

Piz Arlas, Cambrena, Caral reflected in lake, Bernina Pass, Poschiavo Valley, Engadine, Canton of Graubunden, Switzerland, Europe

Hiker admiring the Matterhorn reflected in the Riffelsee lake at sunrise, Gornergrat, Zermatt, canton of Valais, Switzerland, Europe

Night view of Eiger, Monch and Jungfrau mountains covered with snow from Mannlichen, Bern Canton, Swiss Alps, Switzerland, Europe

Sun shining over the Zinalrothorn mountain peak through clouds, Valais Canton, Swiss Alps, Switzerland, Europe

Sunrise on the snowcapped mountains and frozen Lake Silvaplana, aerial view, Maloja, Engadine, Graubunden canton, Switzerland, Europe

Triftbruke (Trift Bridge), Canton of Bern, Switzerland, Europe

The snowy peaks frame the frozen turquoise water of White Lake (Lago Bianco), Bernina Pass, Canton of Graubunden, Engadine, Switzerland, Europe

Traditional houses after a snowfall, Grindelwald, Canton of Bern, Switzerland, Europe

Ancient church of the alpine village of Davos, Sertig Valley, canton of Graubunden, Switzerland, Europe

Rhododendrons and cotton grass, Maloja, Bregaglia Valley, Engadine, Canton of Graubunden (Grisons), Switzerland, Europe

The sun shines on Davos Wiesen, Albula Valley, District of Prattigau/Davos, Canton of Graubunden, Switzerland, Europe

Flowering of crocus in Partnun, Prattigau valley, District of Prattigau/Davos, Canton of Graubunden, Switzerland, Europe

Young girl looks over the river from Il Spir terrace, Rhine Gorge (Ruinaulta), Flims, District of Imboden, Canton of Grisons (Graubunden), Switzerland, Europe

Bernina Express train and colorful woods in autumn, Morteratsch, Engadine, canton of Graubunden, Switzerland, Europe

Sunny day at the castle of Spiez, Canton of Bern, Switzerland, Europe

Old city of Thun is reflected in the Aare River, Thun, Canton of Bern, Switzerland, Europe

Buildings of the old Schwarzes Quartier on banks of Aare River, Bern, Canton Bern, Switzerland, Europe

Aerial by drone of Lake Silvaplana and Bernina mountain range in summer, Engadine, canton of Graubunden, Switzerland, Europe

Starry sky over Galenstock mountain reflected in the pristine Mittleres Schwarziseeli lake, Furka Pass, Canton Uri, Switzerland, Europe

Sunrise over Matterhorn and lake Stellisee, Zermatt, Valais canton, Switzerland, Europe

Silhouette of hiker man admiring Jungfrau mountain peak from First, Grindelwald, Bernese Alps, Canton of Bern, Switzerland, Europe

Hiker admiring sunrise from the shores of Bachalpsee lake, Grindelwald, Bernese Oberland, Bern Canton, Switzerland, Europe

Sunlight over Weisshorn peak emerging from a sea of clouds, canton of Valais, Switzerland, Europe

Untere Schleuse bridge over the Aare, Thun, Canton of Bern, Switzerland, Europe

Aerial view of Fletschhorn and Galehorn mountains in fog at dawn from Hopschusee lake, Simplon Pass, Valais canton, Swiss Alps, Switzerland, Europe

Matterhorn, Dent Blanche, Wellenkuppe and Zinalrothorn peaks in fog from Stellisee lake, Zermatt, Valais canton, Swiss Alps, Switzerland, Europe

View from the drone of a pine tree wood in autumn color, Valais canton, Switzerland, Europe

View from Fronalpstock to Stoos, Glarner Alps, Lake Lucerne, Canton Schwyz, Switzerland, Europe

Rigi Mountain near Vitznau, Lake Lucerne, Canton Schwyz, Switzerland, Europe

Fronalpstock Mountain over Lake Lucerne, Morschach, Canton Schwyz, Switzerland, Europe

Star trail over Bachalpsee and the Bernese Oberland mountains, Grindelwald, Bern Canton, Switzerland, Europe

Aerial view of Fenetre lakes and the massif of Mount Blanc at sunrise, Ferret valley, Valais canton, Col du Grand-Saint-Bernard (St. Bernard mountain pass), Switzerland, Europe

Monte Rosa hut (hutte) with the Matterhorn pyramid in the background, Gorner glacier, Zermatt, Valais canton, Switzerland, Europe

Majestic Fletschhorn and Galehorn peaks in autumn fog at dawn from Hopschusee lake, Simplon Pass, Valais Canton, Swiss Alps, Switzerland, Europe

Hiker stands in front of the iconic shape of Matterhorn among yellow grasses, Riffelalp, Zermatt, Valais Canton, Swiss Alps, Switzerland, Europe

Clouds at dawn, Soglio, Bregaglia Valley, Maloja Region, Canton of Graubunden (Grisons), Switzerland, Europe

Stellisee lake and Matterhorn at sunrise in autumn, Zermatt, Valais Canton, Swiss Alps, Switzerland, Europe

Silhouette of hiker inside the illuminated tent above lake Limmernsee at dusk, Canton of Glarus, Switzerland, Europe

Hiker admiring Aletsch Glacier from viewpoint standing on top of rocks, UNESCO World Heritage Site, Bernese Alps, Valais canton, Switzerland, Europe

Star trail in the night sky over a lone tree on hill and Schreckhorn peak, Sumiswald, Emmental, Bern canton, Switzerland, Europe

The winter sun shines on the snowy mountain huts and woods, Bettmeralp, district of Raron, canton of Valais, Switzerland, Europe

Ice tongue of Rhone Glacier in summer, Gletsch, Canton of Valais, Switzerland, Europe

People on a bench on the shore of Lai da Palpuogna (Palpuognasee), Bergun, Albula Pass, Canton of Graubunden (Grisons), Switzerland, Europe

Cloudy sky over Mount Eiger seen from high mountains above Grindelwald in autumn, Bernese Alps, Canton of Bern, Switzerland, Europe

The snowy peaks and colorful woods are reflected in Lake Champfer, St. Moritz, Canton of Graubunden, Engadine, Switzerland, Europe

Vianden Castle above the Town of Vianden on Our River, Canton of Vianden, Grand Duchy of Luxembourg, Europe

Panorama of ice bubbles and frozen surface of Lago Bianco at dawn, Bernina Pass, canton of Graubunden, Engadine, Switzerland, Europe

Fiery sky at sunset, Soglio, Bregaglia Valley, Maloja Region, Canton of Graubunden (Grisons), Switzerland, Europe

Tower of Steinsberg Castle framed by woods, Ardez, district of Inn, Lower Engadine, Canton of Graubunden, Switzerland, Europe

Alpine village of S-chanf surrounded by green meadows in spring, Canton of Graubunden, Maloja Region, Switzerland, Europe

Typical salami and cheese on chopping board, San Romerio Alp, Brusio, Canton of Graubunden, Poschiavo Valley, Switzerland, Europe

Milky Way on Piz Bernina, Fuorcla Surlej, Corvatsch, Engadine, Canton of Graubunden, Swiss Alps, Switzerland, Europe

Transparent water of river around the alpine village of Davos, Sertig Valley, canton of Graubunden, Switzerland, Europe

Turquoise lake between rocky peaks and meadows, Crap Alv Lejets, Albula Pass, Canton of Graubunden, Swiss Alps, Switzerland, Europe

Aerial panoramic view of Lake Sils and Plaun da Lej during winter, Maloja Region, Canton of Graubunden, Engadine, Switzerland, Europe (Drone)

Flowering of crocus at Alp Flix, Sur, Surses, Parc Ela, Region of Albula, Canton of Graubunden, Switzerland, Europe

Aerial view by drone of Lej Da Champfer, Silvaplana, snowy Piz Da La Margna and Piz Polaschin, Engadine, canton of Graubunden, Switzerland, Europe

Sunset over Matterhorn peak reflected in lake Stellisee, Zermatt, Valais canton, Switzerland, Europe

Aerial view of Maloja Pass mountain road crossing the winter forest covered with snow, Canton of Graubunden, Switzerland, Europe

Aerial view of Lake Sils, Plaun da Lej and Isola after a snowfall, Maloja Region, Engadine, Graubunden Canton, Switzerland, Europe

Green meadows surrounding Bachalpsee lake lit by sunrise, Grindelwald, Bernese Oberland, Bern Canton, Switzerland, Europe

Old town of Thun, Canton of Bern, Switzerland, Europe

Schilthorn cableway passing over the alpine village of Murren, Jungfrau Region, Bern Canton, Swiss Alps, Switzerland, Europe

Dramatic sky at dawn on the snowcapped Piz Palu, Bellavista, Piz Zupo and Monte Disgrazia, Engadine, Graubunden Canton, Switzerland, Europe

View from Fronalpstock Mountain on Lake Lucerne, Morschach, Canton Schwyz, Switzerland, Europe

Mountain lake Seeli with a view to Fronalpstack, Canton Uri, Lake Lucerne, Switzerland, Europe

View from Niederbauen Mountain, 1923m to Fluelen and Altdorf, Lake Lucerne, Canton Uri, Switzerland, Europe

Hiking path on Niederbauen Mountain, 1923m, Lake Lucerne, Canton Uri, Switzerland, Europe

Oberbauen Mountain, Lake Lucerne, Canton Uri, Switzerland, Europe

Sun terrace on Rigi-Kulm Mountain, Lake Lucerne, Canton Lucerne, Switzerland, Europe

Rack railway at Rigi-Kulm station, Lake Lucerne, Canton Lucerne, Switzerland, Europe

Hiker stands near the shore of Fenetre lake admiring the sunset over the massif of Mount Blanc, Ferret valley, Valais canton, Col du Grand-Saint-Bernard (St. Bernard mountain pass), Switzerland, Europe

Piz da la Margna is reflected in the clear water of Lake Sils, Maloja Pass, Engadine, Canton of Graubunden, Switzerland, Europe

Wood hut on the shore of Lai da Palpuogna (Palpuognasee), Bergun, Albula Pass, Canton of Graubunden (Grisons), Switzerland, Europe

Full moon glowing over a snowy mountain road lit by car trails, Bernina Pass, Val Poschiavo, Graubunden canton, Switzerland, Europe

Path among green meadows of the alpine village of Lauterbrunnen with Trummelbach Falls in the background, Bern canton, Switzerland, Europe

View of Soglio between meadows and snowy peaks in spring, Maloja, Bregaglia Valley, Engadine, canton of Graubunden, Switzerland, Europe

Woman looks at old church perched on mountains, San Romerio Alp, Brusio, Canton of Graubunden, Poschiavo Valley, Switzerland, Europe