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A volcanic island just off Taiwan containing chilling ruins from its darkest era, and a zoo lies forgotten in the woods of Arkansas.

A fairy-tale castle that staged one of the strangest stories of the Second World War and a haunting complex on an old American frontier are explored.

Tim Dunn and Siddy Holloway explore the tube station with the most platforms, Baker Street.

Tim Dunn and Siddy Holloway head to London's iconic Camden Town station - a labyrinthine junction on the Northern Line.

Tim Dunn and Siddy Holloway begin their journey at South Kensington, home of Victoria and Albert Museum, the Science Museum and the Natural History Museum.

Tim Dunn and Siddy Holloway are heading to a stunning station you won't find on modern-day tube maps - Dover Street, now known as Green Park.

Gus and Will want to buy an MGB roadster but the cheaper GT version is the one they find. It's got a few rust patches, and back in the workshop they realise beauty is skin deep.

Will and Gus want to buy a BMW, and Will says he likes the 'feminine' Z3. There's a trade-in up the road which might fit the bill, but it's a high price.

David Attenborough showcases wildlife in coastal regions, from Cape fur seals on n South Africa's Robberg Peninsula to hungry lions on Namibia's infamous Skeleton Coast.

The wildlife inhabiting the world's oceans, from the shallow seas of the tropics where predators become the prey, to the greatest depths, captured on film.

Life in some of the many deserts and grasslands around the world, including in the Namib desert, where ostriches raise their family in the searing heat.

Footage of animals that live in freshwater environments, from gliding treefrogs in the Costa Rican rainforest to mugger crocodiles in Sri Lanka.

David Attenborough journeys into the hidden world of forests, from the temperate rainforests of Canada, to the teak forests of India.

Paul, Mick and Charlie are in Hull for one of their biggest ever collections. Dave takes a test drive in Tesla Model X and Derek is bowled over by a classic vintage mo.

The Mathewson family business starts a new era as Charlie heads off on his first solo collection, to pick up an Austin van from the North York Moors.

Derek picks up some very special working vehicles. Charlie feels the pull of a gargantuan Hummer and Paul extracts a vintage tractor from a Yorkshire barn.

Charlie picks up an iconic 60s motor - a Ford Cortina Deluxe - and a 1970s Morris van brings a taste of Carry On Camping to Pickering.