Next Episode of Secrets of the London Underground is
unknown.
Railway historian Tim Dunn and Siddy Holloway from the London Transport Museum explore hidden areas of the London Underground that - despite being just feet away from where millions of people regularly travel - hardly anyone knows about. The pair explore abandoned tunnels, secret bunkers and hidden staircases that have been concealed from public view for years. They will use their unique and privileged access to tell the story of places including London's most clandestine tube station; the former terminus of the world's first electric railway; and a station now only accessible by getting a train driver to stop at just the right place, but which played a key role during the Second World War.
Tim Dunn and Siddy Holloway explore the abandoned branch line between Holborn and Aldwych, closed in the 1990s. And at Holloway Road, they find out about the Tube's only spiral escalator!
Siddy takes Tim on a mystery tour of a secret station deep beneath Hampstead Heath.
Tim and Siddy explore the disused parts of Piccadilly Circus.
Tim and Siddy explore the hidden parts of Euston underground station - and there's a lot to see, including some features not found anywhere else on the London Underground.
Tim Dunn and Siddy Holloway have a night-time adventure as they go on a late-night exploration of two of London's least known stations: St Mary's and the original Aldgate East, they're only a few hundred metres apart but trains haven't stopped at either since 1938.
Tim and Siddy are deep beneath Clapham Common; in fact, they're so deep, the Northern line is running above their heads. This is Clapham South deep level shelter, an enormous, purpose-built air raid shelter. During the Second World War, as rockets landed on the streets above, thousands of people could sleep down here in more than a mile of tunnels - all built by London Transport in the same way they dug tube tunnels.
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