It's pretty hard to put a shovel in the ground in London without hitting something old. We've moved and covered rivers (Fleet, Neckinger, etc.), we've covered

It's pretty hard to put a shovel in the ground in London without hitting something old. We've moved and covered rivers (Fleet, Neckinger, etc.), we've covered and uncovered plague pits, built over and through Roman walls, or you can just go plain-old mud-larking. Then there are lost tunnels. The list goes on... https://en.wikipedia.org/wiki/River_Fleet#Today https://en.wikipedia.org/wiki/River_Fleet#Today https://en.wikipedia.org/wiki/Aldgate_tube_station https://en.wikipedia.org/wiki/Aldgate_tube_station https://en.wikipedia.org/wiki/London_Wall https://en.wikipedia.org/wiki/London_Wall https://www.frommers.com/slideshows/848024-mudlarking-in-the-thames-might-be-the-best-thing-i-ve-done-in-london https://www.frommers.com/slideshows/848024-mudlarking-in-the... https://www.ianvisits.co.uk/articles/londons-lost-pneumatic-railways-part-2-7708/ https://www.ianvisits.co.uk/articles/londons-lost-pneumatic-... https://www.ianvisits.co.uk/articles/the-northern-line-tunnel-that-was-bombed-and-flooded-in-1940-and-is-still-sealed-shut-5331/ https://www.ianvisits.co.uk/articles/the-northern-line-tunne...