The Tower Subway: London's Forgotten 'First Tube Line' Is 150 Years Old | Londonist

The Tower Subway: London's Forgotten 'First Tube Line' Is 150 Years Old | Londonist

... Did you know that a forgotten tube tunnel runs under the Thames beside the Tower of London?

You've probably walked through the Greenwich foot tunnel, and possibly the Woolwich foot tunnel, but you've almost certainly never set foot in the Tower Subway. That's because this little-known Thames crossing closed to the public in 1898. It's still down there and, in April 2020, will reach its 150th birthday. ...