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Mountains create frozen habitats on every continent on Earth, and each of these high-altitude worlds holds unique challenges for its surprising and remarkable life.

Discover some of the marvellous landscapes of the world from high waterfalls to cavernous chasms that would make jaws drop.

Discover places where astronauts are trained for moon missions and dive miles deep into crystal caves with parks that are not well-known.

Nature offers strange sights, exotic formations, and other bizzare sights and sounds to enthrall those who like to take a stroll through the road not taken.

The national parks of America are a welcoming host to a wide range of creatures like sea lions, buffalo, grizzly bears and many more.

Five atheletic women participate in log running along with the Xavante tribe as they run under a melting sun, carrying a log that weighs about 50 kilograms.

The athletes endure the rigourous training of Master Rommel in Mount Banahaw in order to become proficient in the Filipino Pekiti Tirsia Kali stick fighting system.

Find out about goblin's gold, why Spain is under attack from space balls, and how prehistoric lions could be brought back from the dead.

Examine the bizarre case of a mystery stinger in Australia, how a scientist was poisoned on a jungle expedition, and why goats are flying in Utah.

Find out why a much-loved dolphin has started breaking people's bones, and why a caterpillar wears a hat made out of its own spare heads.

Mammals stand out from the animal crowd with their fat, fur, warm blood and the extraordinary care they lavish on their young ones.

Europe's Danube stretches 2,800 kilometres from the Alps to the Black Sea. From the great white pelican to the endangered sturgeon, it also supports a surprising range of wildlife.