

S1 • E1
Tim Dunn explores disused tube station Down Street in Mayfair that played a crucial tactical role during WWII and tours Rotterdam's new Centraal station with the man who designed it.

S1 • E2
Tim Dunn visits the Ffestiniog in Wales originally built to transport slate from mountain to coast and learns about Amsterdam Centraal - controversially built across the waterfront.

S1 • E3
Tim Dunn goes behind the scenes at London's Kings Cross and learns of Bristol's funicular railway.

S1 • E4
Tim Dunn visits the Ribblehead Viaduct in the Yorkshire Dales, talks to the man who saved it from closure and tours the breathtaking stations of the Hungerbergbahn in Innsbruck.

S1 • E5
Tim Dunn follows his family's roots by exploring Metroland, the area around the Metropolitan Railway, and in Great Malvern learns about the woman behind the decorative 1860s station.

S1 • E6
Tim Dunn explores the ornate St Pancras station in London and its sister hotel - built to show off the might of the Midlands, and learns about Castle Howard station in North Yorkshire.

S1 • E7
Tim Dunn rides up Mt Snowdon's railway to visit the summit station, and discovers how a glass structure envelopes Strasbourg's 19th century station.

S1 • E8
Tim Dunn visits the former HQ of London Underground, 55 Broadway, which was the capital's first skyscraper, and sees the timber-framed Barmouth Bridge in North Wales.

S1 • E9
Tim Dunn visits the architecture of the Stockton and Darlington railway, the first passenger steam line in the world and learns how Essex's enormous Chappel Viaduct was built.

S1 • E10
Tim Dunn visits Swindon's railway village, which became home to Great Western's enormous works and he also explores the dark and secret past of Milan's monumental Central Station.
Himself