BBC Earth HD

The Chihuahua Pacific Railway is known as the El Chepe in northern Mexico. It took a hundred years to build the line from Creel to the coast.

An extraordinary 600-mile journey through Finland, from Helsinki to the Arctic Circle. Even at -30 the railway runs smoothly, passing through the thickest of forests.

We travel through the Scottish Highlands from Inverness to Edinburgh, through the majestic Cairngorm National Park, with landscapes steeped in heroic history.

The stunning discovery of an executed man in Northern Italy reveals the brutal truth behind the Roman practice of crucifixion and sheds new light on the most famous crucifixion of all.

The chilling discovery of 30 massacred bodies on a Swedish Island reveals an ancient Nordic murder mystery - the story of how a warrior tribe was brutally murdered by their rivals.

New investigations at Pompeii reveal a dark underbelly of lawlessness, murder and political intrigue. Could this explain the mystery of dozens of bodies found sheltering in a warehouse?

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Michael Portillo travels from the coal mines of Newcastle, New South Wales, to Brisbane, crossing the mighty Hawkesbury River.

Joanna Lumley sets off on one her most epic voyages yet. A journey through the world's greatest spice continents.

Joanna returns to her birthplace, India, in search of a kitchen cupboard staple once known as 'black gold'.

Tornadoes tear through Texas, rip tides trap swimmers in Florida, a storm hits holiday makers in Greece and a wave crashes through a restaurant in Italy.

The team begins a six-month expedition following lions, leopards and cheetahs in the Okavango Delta. A huge wildfire threatens both the big cats and the team.

Having been fearful of hippos since a young boy, Steve Backshall sets out to discover why hippos are considered the most dangerous animals in Africa, and if their aggressive reputation is misunderstood.

Reza sets off on a quest to be the first to capture the mysterious Dugongs of Bahrain on camera.

Dan Snow ventures into Egypt's Valley of the Kings to explore its rediscovery.

Sue hunts waterfowl. Andy and Denise fight the river breakup. Ricko and his kids hunt geese. The Hailstones hunt small game.

Across North America and the rest of the world, hurricanes, storm surges, earthquakes and sea level rise threaten major cities and lead to natural catastrophes.

Having been fearful of hippos since a young boy, Steve Backshall sets out to discover why hippos are considered the most dangerous animals in Africa, and if their aggressive reputation is misunderstood.

The team begins a six-month expedition following lions, leopards and cheetahs in the Okavango Delta. A huge wildfire threatens both the big cats and the team.

Having been fearful of hippos since a young boy, Steve Backshall sets out to discover why hippos are considered the most dangerous animals in Africa, and if their aggressive reputation is misunderstood.

From adorable pygmy sloths to huge living dragons, islands offer a refuge for the planet's strangest creatures. But life on these isolated lands is full of unexpected challenges.

Great mountain ranges may provide some spectacular landscapes, but they are difficult habitats to live in. This film offers an intimate look at the secretive lives of mountain animals.

Jungles offer mysterious worlds with surprising animal characters - follow some of them in the forests of Madagascar as they struggle to survive in this competitive habitat.

This journey across Sri Lanka to Nine Arch Bridge is a trip of a lifetime, travelling along on one of the world's best-preserved Victorian-era railways.

The 200-mile Ligne de Cévennes travels north from Nîmes to France's volcanic heart and the spectacular Puy De Dôme. It travels across three historic viaducts.

Hannah Fry tucks into the tech behind food delivery apps, which are now used by 24 million people in the UK. Hannah finds out how pizza made us fall in love with the internet.

The team begins a six-month expedition following lions, leopards and cheetahs in the Okavango Delta. A huge wildfire threatens both the big cats and the team.

Cherry Healey is in South Africa visiting one of the largest iron ore mines.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

Sue expands her garden. Andy and Denise hunt waterfowl. Ricko teaches his kids to hunt. The Hailstones go on an egg hunt.

Reza ventures into an unexplored canyon in Saudi Arabia, searching for clues of lost civilizations.

The team begins a six-month expedition following lions, leopards and cheetahs in the Okavango Delta. A huge wildfire threatens both the big cats and the team.

Dan Snow ventures into Egypt's Valley of the Kings to explore its rediscovery.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

Cherry Healey is in South Africa visiting one of the largest iron ore mines.

Sue expands her garden. Andy and Denise hunt waterfowl. Ricko teaches his kids to hunt. The Hailstones go on an egg hunt.

The last leg of Joanna Lumley's journey takes her by dhow to Zanzibar, the spice island of Africa where merchants from around the world have left their mark on the architecture, religion and music.

Across North America and the rest of the world, hurricanes, storm surges, earthquakes and sea level rise threaten major cities and lead to natural catastrophes.

Ben travels to Southeast Asia to meet 31-year-old Jon Watkinson, who quit a career in finance for life in a handmade bamboo hut on a remote island on the Mekong River in Laos.

Sue repurposes a snow melter. Ricko repairs his cabin. Jessie builds a new dock. The Hailstones go beachcombing.

Reza ventures into an unexplored canyon in Saudi Arabia, searching for clues of lost civilizations.

Ben ventures back to the barren landscape of the Wild West to re-visit one of his first ever wild men John Wells, a former fashion photographer.

With summer nearing its end, Alaskans kick into high gear.

A flash flood in Australia leaves a family running scared. In Wisconsin, a woman and her dog risk getting swept under the ice and a tornado forces a man to take cover in Vancouver.

The team begins a six-month expedition following lions, leopards and cheetahs in the Okavango Delta. A huge wildfire threatens both the big cats and the team.

Cities are the fastest growing habitat on Earth, but life in the man-made world is not easy for animals. Will the future see cities designed for wildlife too?

After a lifetime of travels that have taken her across the globe, Joanna Lumley is making her most personal journey yet, travelling from Essex to Whitby.

Starting in Preston, locomotive 6201 - The Princess Elizabeth - pulls out, hauling stylish 1930s Pullman carriages in its wake, heading towards the Lake District.

Tony Robinson meets the mighty machines that do the real heavy lifting. From a vehicle that snatches super yachts out of the water, to a bridge building mechanical monster.

The team follow lions, leopards and cheetahs after a huge wildfire. The dominant male lions fight intruders, while the leopards and cheetahs struggle to get a meal.