"If someone were to try and tie together every piece of English History and from the Saxons to Dr. Who, Bowie to the Druids, Air Raids to Shakespeare, to one space they could do so in two words: Chislehurst Caves. How much of it would be true, is another question all together. Despite being called caves, these 22 miles (35 km) of tunnels are something much stranger then that, a series of entirely man-made tunnels, rooms and caverns under the south eastern suburbs of Greater London, UK. Though, there is debate over how old the caverns are, it is believed by some that they go back to the time of the Saxons -- the 400s and 500s A.D. -- some suggest they may go back 8000 years, to 6000 B.C. just after the time when the landmass of Britain was separated from the rest of Europe in 6500 B.C." - Steven Perez from Bookmarklet