The Rotherhithe tunnel is an old hole under the Thames river, nearly a mile long, intended to accomodate both vehicular and pedestrian traffic. In the 112 years since it opened, much has changed about the nature of vehicles, and it is now reportedly "inadvisable" for pedestrians to enter. — Read the rest
Original Link: https://boingboing.net/2021/02/08/never-walk-through-the-rotherhithe-tunnel.html
