BBC Earth HD

In this final episode, the archaeologists complete the excavation of a wealthy residence, a bakery, and a laundry and, in doing so, discover evidence of what people were doing in the city during its final hours.

Michael examines how railways have shaped the world economy. He recalls how the first tracks were laid to shift coal and iron ore, using animals or winches, long before locomotives were invented.

Steve heads into the heart of the Suriname Jungle. He goes in search of poison dart frogs, deadly snakes and hopes to find the elusive giant river otter.

Steve searches for deadly animals living in the capital of Suriname. From snakes in people's gardens to snail-catching kites and one of the deadliest snakes on earth.

Steve takes us into the dangerous world of crocodiles - one of nature's most fearsome predators - entering croc-infested territory escorted by an armed safari guide.

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?

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.

Having learnt where a hippos aggression comes from Steve wants to find out if we can live alongside the animal that kills up to 500 people a year.

Starting a mile above sea level in Colorado's state capital Denver, our train, the Rocky Mountaineer makes its way through the state of Utah.

Leaving chic 21st century Nice behind, the Train des Pignes, or the 'Pine Cone Train', takes us back to the Provence of the past.

Hannah gains access to a top-secret site where anonymous staff and the latest tech work to make the British passport one of the most secure documents on the planet.

Lion numbers continue to grow, but there's not enough food to go around. A lioness mum risks her life to feed her five cubs. And Xudum's new-born leopard cubs face a deadly threat.

Gregg Wallace's popular factory tour show will follow the production of pork pies at the Vale of Mowbray factory, Northallerton.

Steve wants to introduce the team to the bull shark.

The 11th Century Norman invasion of Britain saw the constructions of fortresses never seen before. Massive basitions were built to ward off and would-be invaders.

Sue continues to restore her cabin. Ricko travels with his son to the family cabin. Jessie gathers firewood. The Hailstones go muskox hunting.

On an island off the coast of Panama, Ben spends time with Ian Usher, a Briton who 'sold' his life on eBay and bought his own island for £30 000.

Michael Portillo explores how railways have contributed to the creation of countries, linking people across deserts and mountains and binding together different ethnicities and religions.

Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.

Adventurer Ben Fogle journeys to the mountains of central Portugal, to live with Alex, a British man who traded in his lucrative retail career for his own mountainside hideaway.

Alaskans confront the environment, and themselves, as winter bears down.

In Varanasi, Bettany takes part in a Hindu ritual which helps her process her own bereavement. She also takes a boat out to the Lake Palace on an island in Lake Pichola.

Ben heads to Africa to meet a master bushman who quit a city career for the dry and dusty desert.

Sue collects firewood. Ricko and his son Skyler go beaver trapping. Jessie explores his newly purchased land. The Hailstones move up river.

Volcanoes are put into three categories: extinct, dormant and active. But in this episode we show how even unexpected eruptions can happen, and when they do, they are both spectacular and terrifying.

Lion numbers continue to grow, but there's not enough food to go around. A lioness mum risks her life to feed her five cubs. And Xudum's new-born leopard cubs face a deadly threat.

In southeast Alaska, there's an ice-bound Eden that harbors possibly the richest temperate rainforests of all.

Michael explores how railways enabled the dissemination of cultural, social, religious and political ideas, and celebrates the cultures which his antique Bradshaw's railway guidebook has introduced him to.

Building for God reached a high point in the Middle Ages when a new engineering movement emerged in Europe, using pioneering architecture to create a glimpse of heaven.

HMS Queen Elizabeth is a ship of record-breaking proportions with cutting-edge naval and aerial engineering. Learn how the vessel was engineered and built.

When Sir David Attenborough was in his eighties, he embarked on a journey of rediscovery.

Ben ventures to the 'Emerald Isle' to visit Georg and Bettina, an elderly couple from Austria and Germany who made the Irish wilderness their home nearly 40 years ago.

Alaskans rediscover old practises to get through the heart of winter.

Angkor Wat is a 900-year-old temple covering more than 400 acres across the Cambodian jungle. Endless hallways and colossal structures exhibit precision stonemasonry.

Michael explores how railways enabled the dissemination of cultural, social, religious and political ideas, and celebrates the cultures which his antique Bradshaw's railway guidebook has introduced him to.