Ski touring on Kungsleden (The Kings Trail) frozen lake, Abisko National Park, Sweden, Scandinavia, Europe

Gentoo penguin (Pygoscelis papua) climbing penguin highway on Cuverville Island, Antarctica, Polar Regions

Car traveling on ice track on a frozen lake in the snow covered landscape, Jokkmokk, Norrbotten, Lapland, Sweden, Scaninavia, Europe

Penguin tracks left on first year sea ice in the Lemaire Channel, Antarctica, Polar Regions

Road to nowhere snow scene in The Cotswolds, UK

Frosty scene field and trees during hoar frost in winter, The Cotswolds, UK

Land Rover driving along frosty track in wintry landscape in The Cotswolds, Oxfordshire, UK

Adult gentoo penguins (Pygoscelis papua) going and returning from sea to feed, Neko Harbour in Andvord Bay, Antarctica

Adult emperor penguin (Aptenodytes forsteri) on sea ice near Snow Hill Island in the Weddell Sea, Antarctica.

Polar bear (Ursus maritimus) tracks in fresh snow on multi-year ice floes in the Barents Sea, Svalbard Archipelago, Norway

Inside the Ski Dubai complex, Dubai, United Arab Emirates, Middle East

Polar bear (Ursus maritimus) tracks in fresh snow on multi-year ice floes in the Barents Sea, Svalbard Archipelago, Norway

Polar bear (Ursus maritimus) tracks in fresh snow on multi-year ice floes in the Barents Sea, Svalbard Archipelago, Norway

Adult emperor penguin (Aptenodytes forsteri) on sea ice near Snow Hill Island in the Weddell Sea, Antarctica.

Penguin pathways melted into the snow . Cuverville Island, Antarctica

Inside the Ski Dubai complex, Dubai, United Arab Emirates, Middle East

Snowy mountain road, Aletsch Glacier, Languedoc-Roussillon, Switzerland

Railway tracks with an Intercity Express Train, ICE, near Munich Central Station, Muenchen Hauptbahnhof, Bavaria, Germany, Transport

Trekking group on Khumbu glacier with Nuptse (7861), Khumbu Himal, Sagarmatha National Park, Nepal

Trekking group at Chola Khola valley near Dzonglha in front of Ama Dablam (6856), Sagarmatha National Park, Khumbu Himal, Nepal

Valley of Machhermo Khola with Kyajo Ri (6186), Sagarmatha National Park, Khumbu Himal, Nepal

Trekking group on Khumbu glacier with Pumori (7161), Khumbu Himal, Sagarmatha National Park, Nepal

Khumbu glacier moraine with Taboche (6367), Cholatse (6335) and Arakamtse (6423), Khumbu Himal, Sagarmatha National Park, Nepal

Valley of Machhermo Khola with Kyajo Ri (6186), Sagarmatha National Park, Khumbu Himal, Nepal

249 m or 817 ft-long Fuldatalbruecke Kragenhof (Fulda Valley Bridge Kragenhof), part of the ICE Hanover-to-Wuerzburg high-speed railway line near Kirchheim, Hesse, Germany, Europe

Yak caravane at Dudh Koshi valley, Sagarmatha National Park, Khumbu Himal, Nepal

ICE 2 entering the main station Cologne, fog, North Rhine-Westphalia, Germany

Intercity-Express train, ICE, and a regional train, suburban train, on the track, railway, track network next to the main railway station in Essen, Essen, North Rhine-Westphalia, Germany, Europe

Discarded worker's clothing and a footprint, covered with hoarfrost, Huettenwerk Meiderich steel mill after closure, today Duisburg-Nord Landscape Park, North Rhine-Westphalia, Germany, Europe

Male hiker walking on bridge over a fairy tale creek

Trekking group at Dudh Koshi valley with Thamserku (6608), Sagarmatha National Park, Khumbu, Nepal

ICE, Intercity-Express train on the track, railway, track network next to the Essen main railway station, Essen, North Rhine-Westphalia, Germany, Europe

ICE train leaving Basel Badischer Bahnhof railway station, DB, Basel, Switzerland, Europe

Trekking porter on Khumbu glacier with Nuptse (7861), Khumbu Himal, Sagarmatha National Park, Nepal

Historic stupa in front of Thamserku (6608), Sagarmatha National Park, Khumbu, Nepal

721 m or 2365 ft-long Waelsebachtalbruecke (Waelse Valley Bridge), part of the ICE Hanover-to-Wuerzburg high-speed railway line near Kirchheim, Hesse, Germany, Europe

Tunnel through a glacier, Gletscherpalast at Kleines Matterhorn (3883 m), Zermatt, Wallis, Valais, Switzerland

ICE (InterCityExpress) German high-speed train driving over a bridge fast, Hesse, Germany, Europe

Historic stupa in front of Thamserku (6608), Sagarmatha National Park, Khumbu, Nepal

Trekking group on Khumbu glacier with Nuptse (7861), Khumbu Himal, Sagarmatha National Park, Nepal

Trekking group on the way to Gokyo with Cho Oyu (8201), Sagarmatha National Park, Khumbu Himal, Nepal

Trekking group at Chola Khola valley near Dzonglha in front of Ama Dablam (6856), Sagarmatha National Park, Khumbu Himal, Nepal

Yak caravane obove Machhermo Sherpa village (4410), Sagarmatha National Park, Khumbu Himal, Nepal

Train at Munich central station, Munich, Germany

Historic stupa in front of Thamserku (6608), Sagarmatha National Park, Khumbu, Nepal

ICE, Intercity-Express train on the track, railway, track network next to the Essen main railway station, Essen, North Rhine-Westphalia, Germany, Europe

Cho La Pass (5330), Khumbu Himal, Sagarmatha National Park, Nepal

Ngozumpa glacier with Cho Oyu (8201), Khumbu Himal, Sagarmatha National Park, Nepal

Cho La Pass (5330), Khumbu Himal, Sagarmatha National Park, Nepal

Khivus winter transport on ice. Hovercraft. Ice on the surface of the transparent frozen Lake Baikal. Blue sky. Horizon. Horizontal. Baikal in winter

Trekking group on Khumbu glacier with Nuptse (7861), Khumbu Himal, Sagarmatha National Park, Nepal

Trekking group at Sherpa village Pangboche, Sagarmatha National Park, Khumbu, Nepal

Ride on the Brienz-Rothorn-Bahn rack railway on Mt. Brienzer Rothorn, Bernese Oberland, Switzerland, Europe

Trekking group at Bhote Koshi valley, Sagarmatha National Park, Khumbu, Nepal

ICE 2, Baden-Wuerttemberg, Germany

ICE express train, central train station, Berlin, Germany

Tracks, Cologne, North Rhine-Westphalia, Germany

Train of the German Federal Railroad in the snow, Muehlheim, Hesse, Germany, Europe

Train of the German Federal Railroad in the snow, Muehlheim, Hesse, Germany, Europe

Train of the German Federal Railroad in the snow, Muehlheim, Hesse, Germany, Europe

Train of the German Federal Railroad in the snow, Muehlheim, Hesse, Germany, Europe

"The Squaire", shopping centre with hotels and offices above ICE Fernbahnhof, Frankfurt Airport long distance railway station, Frankfurt am Main, Hesse, Germany, Europe

ICE 2 train, Cologne, North Rhine-Westphalia, Germany, Europe

Eiffel tower and ice skating at Christmas markets, Paris, France, Europe

Scenic view of Litlanesfoss waterfall and surrounding cliffs of Hengifoss walking track, Iceland

Gornegrat gondola station with train going back to Zermatt from summit downwards,  Zermatt, Valais, Switzerland

Road During Winter Blizzard, Caledon, Ontario, Canada

Wolf

The aircraft;DC-3 Basler) takes off from Concordia's snow-covered runway. Take-off of a Basler at Concordia. The runway is groomed very evenly to minimise the micro-relief on its surface and make it easier for the aircraft to take off. The aircraft are equipped with landing gear allowing them to land alternatively on a ?hard? runway or on snow: retractable skis controlled from the cockpit are fitted to the two front landing gears. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

The Basler, stationed on the Terra Nova Bay ice floe in front of the Mario Zucchelli base. The mechanics take advantage of a rare lull to carry out routine maintenance. The aircraft is strapped to the ground. A squall arrives from the left. Victoria Land, Antarctica

A German BGR helicopter used in Terre Victoria to transport geologists to specific research points. These are one-off scientific programs, involving the collaboration of several countries, in this case Germany and Italy. The Germans set up a base camp several dozen kilometers from the Italian Mario Zucchelli station, using Italian logistical resources such as the Laura Bassi icebreaker to transport the helicopter, the equipment needed to set up the base camp, scientific equipment and, of course, personnel. All of this was delivered to the Mario Zucchelli station for onward transport by helicopter to the search site. Victoria Land, Antarctica

The Lockheed C-130 Hercules prepares to take off from the runway built on the sea ice in Terra Nova Bay, where the Mario Zucchelli station is located. Victoria Land, Antarctica

General view of Terra Nova Bay. In the distance, the summer airstrip. In the background, Mount Melbourne. On the right, the Mario Zucchelli base. Victoria Land, Antarctica