Hidden underground

Today we came down to London on a "Hidden London" photographic tour of some of the unused tunnels round Euston station.  It was interesting going behind the scenes and at one point we were able to look down on the Victoria Line platform from above through some ventilation grilles.   See Technophobe's Blip

My main image is of one of the old lift shafts which are now used for ventilation

My extra shows one of the old posters that still adorn the tunnels from the 1960s when they were last used