Hole in the Ground
Some people will not be familiar with the song by Bernard Cribbins in 1962 - https://www.youtube.com/watch?v=P-JVnlB7Onk
This particular hole in the ground used to be the entrance to the underground toilets in Kings Square. It was filled in when the square was redeveloped, I think in the 80's. The square is now under redevelopment again, not sure if they are going to reopen the public toilets but I doubt it more likely they have to collapse the empty space underground.
Found some images of what it will look like here - https://www.gloucestershirelive.co.uk/news/gloucester-news/kings-square-finally-start-look-3912102