Racing on a frozen lake as ice cracks below

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Racing on a frozen lake as ice cracks below Over three days, competitors from around the world travel 205km on Siberia's frozen Lake Baikal.

Video duration 2:30

Doggy dramas and toilet trouble during extreme race The scenery is stunning but the conditions are freezing, and this year, there were some very difficult toilet situations.

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The world’s longest horse race In 2009 the first ever Mongol Derby was raced across the vast expanse of the Mongolian Steppe.

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'Overweight' woman completes desert race An "overweight" woman gave up alcohol and cigarettes to conquer a desert endurance race.

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Racing across the Sahara with no GPS The annual Rallye Aicha des Gazelles sees all-female teams competing in a race where the fastest doesn't always win.

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The Inferno: 'The craziest downhill race in the world' Ski Sunday's Chemmy Alcott visits Mürren in Switzerland to take on The Inferno, the world's oldest and "craziest" downhill race.