TQ 5875 SWANSCOMBE AND GREENHITHE GREENHITHE 989/9/10003 The Cave of the Seven Heads in the grounds of Ingress Abbey at TQ 5898 7508 GV II Garden folly. c1833 reusing earlier masonry possibly from old London bridge. Cave excavated into the side of an embankment with rough stone exterior wall with arch with four keystones of grotesque heads which possibly came from the medieval London Bridge and semicircular chamber about 12 feet across with two stone pillars. The remaining three heads were either buried beneath the soil level or not in situ at time of survey. Listing NGR: TQ5898075080