Quick/rough videogrammetry capture of the north entrance and part of the Greenwich Foot Tunnel, Island Gardens, London.
The Greenwich Foot Tunnel was constructed in 1902.
In the tunnel can be seen a narrower section formed by a repair collar installed after bomb damage to the tunnel in WW2.
https://en.wikipedia.org/wiki/Greenwich_foot_tunnel
Frames extracted from video filmed with a Sony a6000 and processed in Agisoft Metashape.