Detail of a semi automatic weapon in the Lower Omo Valley, Ethiopia, Africa

A climber takes a break on the lower slopes of El Capitan to enjoy the view up the Yosemite Valley towards Washington Column and North Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Adult Antarctic Minke Whale (Balaenoptera bonaerensis), also known as the Southern Minke Whale, breaching near the Antarctic Peninsula

Adult Antarctic Minke Whale (Balaenoptera bonaerensis), also known as the Southern Minke Whale, breaching near the Antarctic Peninsula

Adult Antarctic Minke Whale (Balaenoptera bonaerensis), also known as the Southern Minke Whale, surfacing near the Antarctic Peninsula

Adult Antarctic Minke Whale (Balaenoptera bonaerensis), also known as the Southern Minke Whale, surfacing near the Antarctic Peninsula

Adult Antarctic Minke Whale (Balaenoptera bonaerensis), also known as the Southern Minke Whale, surfacing near the Antarctic Peninsula

Members of Langdale Ambleside Mountain Rescue Team lower a stretcher down a crag as part of a training exercise, Lake District, Cumbria, England, United Kingdom, Europe

Two workers secured with ropes working on vertical surface, chimney, renovation works, Duernrohr power plant, Zwentendorf an der Donau, Lower Austria

Two workers secured with ropes working on vertical metal surface, renovation works, Duernrohr power plant, Zwentendorf an der Donau, Lower Austria

Two biplanes at a stunt flying show - model Kiebitz D-EDEM Kapfenberg, Styria, Austria

Female climber with crampons on a rope in lower Khumbu Icefall, Base Camp, 5300m, Mount Everest, Himalaya, Nepal

Prohibition sign, Lower Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA

Grafenrheinfeld Nuclear Power Plant, Lower Franconia, Bavaria, Germany, Europe

Grafenrheinfeld Nuclear Power Plant, Lower Franconia, Bavaria, Germany, Europe

Church of Roethlein in front of Grafenrheinfeld Nuclear Power Plant, Lower Franconia, Bavaria, Germany, Europe

A woman wearing a red tank top and striped pants climbs The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California on. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A woman wearing a red tank top crimps down on a small hold while climbing The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A woman wearing a red tank top and striped pants clips a quick draw while climbing The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A woman wearing a red tank top and striped pants climbs The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A woman wearing a red tank top and striped pants climbs The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A woman wearing a tank top and striped pants reaches for chalk while climbing The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

Silhouette of man balancing on highline high above foggy hills, Lower Austria, Austria

Yak eating from bowl at base camp on the lower slopes of the Everest range, Khumbu region, Nepal