The tunnel and arches below Waterloo Station, London that are completely coated in graffiti.
The graffiti began during the Cans Festival organised by Banksy on 3–5 May 2008.
https://en.wikipedia.org/wiki/Leake_Street
https://www.leakestreetarches.london/
1732 photos taken on 3rd July 2020 with a Sony a6000 and processed in Agisoft Metashape.