d wrote:
When walking down to the Piccadilly platforms from the Victoria ones, before
the last flight of steps down to platform level, the corridor continues
behind a grated metal door. Does anyone know what used to be down there?


Dragons!

Or, more accurately, the lift shaft from when Green Park was just a
little Piccadilly station, before the rebuild as a major interchange.

--
John Band
john at johnband dot org
www.johnband.org