I remember seeing three Concordes at Heathrow on google earth, long gone now.It was a model replaced by an A380, can't remember if it was emirates or singapore.
The one over by hatton cross was a real one, sitting outside the hangar. Just looked on google maps and its not there anymore.
I have a couple of souvenirs from a Concorde, a cargo hold ligjht frame and a turbine blade from an engine.