The Architecture the Railways Built

Tim Dunn explores disused tube station Down Street in Mayfair that played a crucial tactical role during WWII and tours Rotterdam's new central station with the man who designed it.

Tim Dunn visits the Ffestiniog in Wales originally built to transport slate from mountain to coast and learns about Amsterdam Central - controversially built across the waterfront.

Tim Dunn goes behind the scenes at London's King's Cross station and finds out about the disused funicular railway hidden in the Avon Gorge in Bristol, blasted out of the cliff.

Tim Dunn visits the magnificent Ribblehead Viaduct and explores the stations and structures along the Settle to Carlisle line. He also enjoys the art deco splendour of Surbiton and the glacier-like structures of the Hungerbergbahn stations in Innsbruck.

Tim Dunn follows his family roots by exploring the architecture in Metroland to the north west of London. He also sees the ornate Great Malvern station and its secret “Worm” passage and he experiences the extraordinary Glacier Express in Switzerland.

Tim Dunn explores the ornate St Pancras station in London and its sister hotel – built to show off the might of the Midlands. He also learns about the station built for Castle Howard and a new Swiss funicular that keeps a mountain village connected.

Tim Dunn rides up Snowdon’s railway in Wales to visit the summit station, built to withstand extreme weather. He explores the world’s largest mechanically operated signal box at Shrewsbury station and finds out how a glass structure envelops Strasbourg’s 19th century station.

Tim Dunn looks inside the former HQ of London Underground, 55 Broadway, which was the capital’s first skyscraper. He visits the rural Norfolk station that used to serve the monarch’s Sandringham Estate and sees the timber-framed Barmouth Bridge in north Wales.

Tim Dunn visits the architecture of the Stockton & Darlington railway, the first passenger steam line in the world. He also finds out how Essex’s enormous Chappel Viaduct was built and explores the beautiful stations of Stockholm’s metro system.

Tim Dunn visits Swindon’s railway village, which became home to Great Western’s enormous works. He also looks at the 1990s station buildings on London’s Jubilee Line extension; and he explores the dark and secret past of Milan’s monumental station.