Information for Entrance - London Bridge Experience and Tombs at London Bridge Experience, Inner London (Entrance). The London Bridge Experience and Tombs - Voted the UK Scariest Year Round Scare Attraction several times. This is a 2 part attraction combining interactive character led fun with a trip through 2000 years history of London Bridge and the surrounding area. The London Tombs - a genuine former plague pit - is terrorised by the ones that shouldn't be spoken about, with their masks and depraved minds it is unsure if the real is real at all and the impossible is true indeed! Take flight with friends and don't let go as the clowns who smile attempt to kill and the chainsaw maniac attempts to keep you in his lair!