BBC Earth HD

Bettany arrives in the Peloponnese, a peninsula that's home to some of ancient Greece's most legendary kings and vicious warriors.

The natural world is full of colours. For us, they are a source of beauty, but for animals they are a tool for survival. David Attenborough reveals the extraordinary ways in which animals use colour.

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

Alaskans power through the dog days of summer.

In Coimbra, there are visits to a convent, a mosque and a synagogue. Finally, after 14 days and 364 kilometres, the group finally reach the famous Sanctuary of Fatima.

Ben Fogle travels to Brazil to meet Chris, a Scotsman who has chosen to make his home in one of the most remote areas of the jungle near the Amazon river.

With winter tightening its grip, Alaskans buckle down and ready themselves for the long months ahead.

Comedian, actor and travel enthusiast Griff Rhys Jones journeys from Brisbane to Cairns aboard the Spirit of Queensland railway.

Comedian and travel enthusiast Griff Rhys Jones continues his journey Down Under. On the Spirit of the Outback, travelling to Queensland's west, Griff seeks to uncover what makes 'the good life'.

Joanna begins with Paris. She takes a hot-air balloon ride, visits the fire-damaged Notre-Dame and meets heiress Daphne Guinness.

Joanna continues her travels to Rome, a city like no other on earth. She zips into the city on the back of a Vespa to get her first glimpse of the beauty that awaits.

Joanna continues her travels to Berlin. A sometimes dark history has given birth to a creative city with a thrilling atmosphere.

Gregg Wallace visits a factory with a menthol scent. The Polos factory in York produces 32 million every single day. They have been churning out these little holey wonders since 1948.

Dr Michael Mosley and the 30 other patients enrolled in the trial are diagnosed with chronic, but common sleep disorders.

On Great Blasket Island, off the coast of Ireland, Ben stays with London couple Dan and Emily, who landed an extraordinary job as island caretakers on Europe's rugged western frontier.

As the sun fades across the land, Alaskans brace for Dark Winter's return.

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.

Bettany sails through the Corinth Canal, and from Corfu she ends her journey at Ithaca.

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.

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.

In Arizona, lightning strikes from so high above the ground, through such clear air, that it creates the perfect conditions for the most electrifying show on Earth.

Ben heads to northern England and stays with host Paul in Lincolnshire onboard his 30-year-old converted military truck. He discovers why Paul traded living in a house for life on the road.

See the long, dark, frozen winters to sweltering, bug-infested summers in remote Canada.

The invention of railways coincided with the period of European colonisation. A look at how the Europeans used railways to further their imperial ambitions in other parts of the world.

Bettany enjoys the breath-taking journey through the Tamil Nadu hills, between Mettupalayam and Udhagamandalam (Ooty).

Alice ends her adventure in Aswan, whose quarries provided the granite for the country's vast collection of Ancient Egyptian monuments. She then takes a boat to see the extraordinary Philae Temple.

In Arizona, lightning strikes from so high above the ground, through such clear air, that it creates the perfect conditions for the most electrifying show on Earth.

Ben heads to northern England and stays with host Paul in Lincolnshire onboard his 30-year-old converted military truck. He discovers why Paul traded living in a house for life on the road.

See the long, dark, frozen winters to sweltering, bug-infested summers in remote Canada.

The invention of railways coincided with the period of European colonisation. A look at how the Europeans used railways to further their imperial ambitions in other parts of the world.

Bettany enjoys the breath-taking journey through the Tamil Nadu hills, between Mettupalayam and Udhagamandalam (Ooty).

Alice ends her adventure in Aswan, whose quarries provided the granite for the country's vast collection of Ancient Egyptian monuments. She then takes a boat to see the extraordinary Philae Temple.

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.

With winter tightening its grip, Alaskans buckle down and ready themselves for the long months ahead.

Ben Fogle travels to Brazil to meet Chris, a Scotsman who has chosen to make his home in one of the most remote areas of the jungle near the Amazon river.

Bettany sails through the Corinth Canal, and from Corfu she ends her journey at Ithaca.

Alice ends her adventure in Aswan, whose quarries provided the granite for the country's vast collection of Ancient Egyptian monuments. She then takes a boat to see the extraordinary Philae Temple.

Ben heads to northern England and stays with host Paul in Lincolnshire onboard his 30-year-old converted military truck. He discovers why Paul traded living in a house for life on the road.

See the long, dark, frozen winters to sweltering, bug-infested summers in remote Canada.

Deep in Borneo's forests, Levison meets the last-remaining endangered orangutans, and learns more about their unique lives and their environment, as they face the threat of deforestation and poaching.

Simon Reeve is back to visit one of Britain's favourite counties to discover what life is really like for the locals after the summer crowds have gone.

In Namibia's extreme environment, Levison tracks down some of the last remaining desert lions and learns about the vital work that's giving them a fighting chance of survival.

Ben stays with Naveen and Anke who have made their home in the Sri Lanka's highlands. He uncovers why they swapped one of the biggest cities in the world for a simple off-grid existence miles from civilisation.

Kim and Pierre turn their attentions to harvesting big game.

Michael has travelled through two centuries of history aboard some of the world's most spectacular railways. Michael shares his thoughts on the role of railways in war.

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

Simon Reeve is back to visit one of Britain's favourite counties to discover what life is really like for the locals after the summer crowds have gone.

The coastal metropolis of Miami faces a triple threat of crumbling limestone bedrock, ferocious superstorms and relentless rising oceans.

See how Britain's National Gallery, The Tate, stepped in to help the Bankside on the southern shore of the River Thames.

Discover how the St Louis Rail Station went from being the biggest in the United States to falling into disrepair.

Starting in Alexandria, Alice searches for Cleopatra, discovers how the Romans and the Greeks reacted to the treasures of Ancient Egypt, and learns how a slave became a sultan and built his own caste.

Alice arrives in Cairo by train with a book she first read as a youth: A Thousand Miles Up the Nile by Victorian Egyptologist Amelia Edwards. Alice follows Edwards' footsteps to the Great Pyramids.

Alice takes the train to Luxor to see Tutankhamun's tomb and his mummified body in the Valley of the Kings. She also takes a walk along the Avenue of the Sphinxes.

Alice ends her adventure in Aswan, whose quarries provided the granite for the country's vast collection of Ancient Egyptian monuments. She then takes a boat to see the extraordinary Philae Temple.

Steve Backshall is on a mission to create a new generation of shark saviours, but first he needs to find his team. Steve takes 12 young UK hopefuls to boot camp.

Steve Backshall has chosen his UK team of six to travel with him to Bimini in the Bahamas, where they learn how to scuba dive and become the next generation of shark saviours.

Griff Rhys Jones starts his Canadian journey in Newfoundland where he goes looking for moose.

Griff Rhys Jones continues his journey across Canada, heading to Quebec and Montreal to experience the French Canadian way of life, which includes sampling poutine, Maple syrup and the obsession with ice hockey.

Griff Rhys Jones begins his exploration of Ontario at Niagara Falls, right on the U.S border, to uncover what it is that makes Canadians so nice.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

In New Zealand, the White Island volcano erupts - with deadly consequences.

The natural world is full of colours. For us, they are a source of beauty, but for animals they are a tool for survival. David Attenborough reveals the extraordinary ways in which animals use colour.

Steve Backshall is taking ten novice divers on one Deadly mission - to dive with sharks in Bimini, the shark capital of the world, with the ultimate goal being to qualify as scuba divers.

Some of the team explores the mangroves, which are essential for the survival of some sharks. While there, they come face to face with baby lemon sharks.

Deep in Borneo's forests, Levison meets the last-remaining endangered orangutans, and learns more about their unique lives and their environment, as they face the threat of deforestation and poaching.

Simon Reeve is back to visit one of Britain's favourite counties to discover what life is really like for the locals after the summer crowds have gone.

Sue wonders what animal is visiting her compound at night. Ricko and his daughter spot some moose. At Calico Bluff, Denise set some rabbit traps.

In Arizona, lightning strikes from so high above the ground, through such clear air, that it creates the perfect conditions for the most electrifying show on Earth.

Steve Backshall is taking ten novice divers on one Deadly mission - to dive with sharks in Bimini, the shark capital of the world, with the ultimate goal being to qualify as scuba divers.

Some of the team explores the mangroves, which are essential for the survival of some sharks. While there, they come face to face with baby lemon sharks.

The natural world is full of colours. For us, they are a source of beauty, but for animals they are a tool for survival. David Attenborough reveals the extraordinary ways in which animals use colour.