Yes, it must be nice to be loaded plus it is up to £15 per hour to park in central London (plus £11.50 congestion charge and a further £12.50 if you drive a diesel. All that and the air quality is still the worst in Europe.
Mags I think London's oldest building is the tower of London (or the White Tower part of it) There are a few bits of Roman Wall left but no actual buildings.