A line of climbers on the Lhotse Face, Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Ice climbing on Mont Blanc, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climbing on Mont Blanc, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climbing on Aiguille du Midi, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climbing on Aiguille du Midi, Chamonix, Haute-Savoie, French Alps, France, Europe

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A line of climbers on the Lhotse Face, Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Climbers on the Geneva Spur, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

An Atlantic Puffin (Fratercula arctica), atop a cliff in Westman Islands, Iceland,, Polar Regions

Adult bull killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Cleaning the beach in Mauritius to aid tourism

Chinese boy walking the Great Wall of China at Mutianyu, north of Beijing (formerly Peking)

Chinese boy walking up steps of the Great Wall of China at Mutianyu, north of Beijing, China

Caucasian man climbing rock

Caucasian rock climber chalking hands

Caucasian woman resting on rock near rope

Caucasian man fastening rope to harness of woman

Man racing in wheelchair on track

Caucasian man climbing rock

Carabiners on Caucasian man climbing rock

Caucasian woman climbing rock

Caucasian woman climbing rock

Mixed Race girl playing soccer

Caucasian man winding rope

Asian woman rock climbing

Caucasian rock climber fastening rope to harness

Black woman wrapping hands for boxing

Caucasian man and woman rock climbing

Man racing in wheelchair on track

Caucasian woman fastening rope to harness

Asian woman rock climbing

Portrait of black woman with hands wrapped for boxing

A young man climbing above the Inland Sea, he places natural protection, Dwerja Bay, Gozo, Malta, Europe

Chaines ensuring pilgrimage route at a steep rock face, Hua Shan, Shaanxi province, China, Asia

Safety equipment for ski tours, Avalanche protection, Avalanche Transceiver, PIEPS, Hochgrat, Allgaeu Alps, Germany, Europa

Kevin Jorgeson climbing "Fantasia" at Lover's Leap, a popular granite climbing destination near Lake Tahoe in California's Sierra Nevada mountains. The cliff is known for its distinct horizontal quartz dikes which make interesting climbing. This route is considered a risky mental test piece because of its lack of good cracks for protection. It was first climbed in 1973 by Royal Robbins and Ken Wilson.

Male rock climber at the New River Gorge, West Virginia.

Tom McMillan blowing out a seam to place protection while making an ascent.

Snow on a building roof being sawed off on February 15, 2008 to reduce the snow load in Yellowstone National Park, Wyoming.

Experienced riders descend a downhill mountain bike trial which drops into the town of Moab, Utah.

Experienced riders descend a downhill mountain bike trial which drops into the town of Moab, Utah.

Man with spinal cord injury about to use adaptive climbing equipment up a rock face

Man with spinal cord injury mountain climbing with adaptive equipment

Players playing baseball, Langone Park, Boston, Suffolk County, Massachusetts, USA

Man with spinal cord injury using adaptive climbing equipment for rock climbing

Hikers backpacking on mountain, Everest, Khumbu region, Nepal, Everest, Khumbu region, Nepal

Girl skateboarding down on sidewalk

USA, New Mexico, Santa Fe, Woman in face mask removing snow from car

Girl learning how to rollerskate

Extraction of ice cube from the Lena river for use as drinking water by residents without access to running water, Yakutsk, Republic of Sakha, Russia