BBC Earth HD

'S1/E2 - Railways and Tourism'. Michael Portillo looks at how railways gave birth to modern tourism, as the first railway companies were quick to spot a business opportunity.

'S10/E8 - Columbia'. Adventurer Ben Fogle meets Vanessa Forero deep in the Sierra Nevada de Santa Marta, an isolated mountain range in the north of Columbia.

'S7/E11 - Croatia'. As one of the world's most in-demand sporting coaches, 43-year-old Nikola Boric once travelled the world, welcomed everywhere he went. Now, he lives in a wooden cabin without electricity, water or heating.

'S11/E1 - Pulled from the Darkness'. As Alaskans enter a new dawn in the Arctic winter, they must adapt to the changing landscape if they are to survive.

'S2/E4 - Earthquakes'. In 2011, the earthquake that struck New Zealand's South Island became the nation's fifth-deadliest disaster.

'S2/E2 - India'. Ben Fogle journeys to the foothills of the Indian Himalayas to live with former fighter pilot Steve Lall, who is now a mountain farmer.

'S7/E5 - Hard Knocks'. Sue repairs her cabin in Chena. The DeWildes set a net. Jessie spends time with his young dogs. Chip receives medical attention after an accident.

'S2/E5 - Floods'. Killing more people, a year than hurricanes, tornadoes and lightning, floods are one of the most feared disasters with the most traumatic effects.

'S1/E2 - Episode 2'. The dig continues and the all-Italian team of archaeologists discover the remains of a horse harness. As they cannot find any remains of the horse they wonder if it managed to escape Pompeii as the eruption began.

'S1/E4 - Galapagos: Enchanted Isles'. Discovering how the Galapagos became one of the most important areas of biodiversity in the world.

'S1/E3 - Railways and the Economy'. 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.

'S1/E3'. The Great Pyramid of Giza is the oldest of the Seven Wonders of the World.

'S1/E3 - Episode 3'. 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.

'S1/E2 - Dark Worlds'. Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.

'S7/E12 - Oregon'. Ben meets a photographer living out his childhood dream. Dan Price gave up his job as a photographer to live the remotest of lifestyles in a meadow in Oregon, USA.

'S11/E2 - Like Ghosts'. The Hailstones produce an original work of Inupiaq art, and Cole Sturgis ventures into the wilds of the Southeast on a life-or-death hunt.

'S1/E4'. 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.

'S1/E3 - Railways and the Economy'. 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.