44 Insane Facts Everyone Near London Should Know

In 2025, a DNA study quietly demolished a London fact that sat in biology textbooks for nearly thirty years. But that's only one of 44. Big Ben isn't the tower — it's the bell inside it. The Thames was declared biologically dead within living memory, and now sharks swim in it. Churchill ran part of the Blitz from a sealed Underground station most people walk past without knowing it exists. In this video, we explore: → Big Ben is the 13.7-tonne bell cast in 1858, not the clock tower beside Parliament — and people have got it wrong for over 160 years → Pelicans have lived in St James's Park since 1664, and in 2006 one was filmed swallowing a live pigeon whole after a twenty-minute struggle → Two men walked into Harrods in 1969 and bought a lion cub for 250 guineas, then raised it in a flat above a Chelsea furniture shop before flying it to Kenya to be rewilded → Christopher Wren's Monument is a 202-foot stone ruler — that exact figure is the horizontal distance to the Pudding Lane bakery where the Great Fire began in 1666 → Official death toll of that fire, recorded in parish registers, is six people; historians now think the real number could run into the thousands, with no way to ever count them → Severed, tar-coated heads of traitors were mounted above London Bridge by official Crown order, sometimes 30 at once, with foreign ambassadors riding directly beneath them → Chislehurst Caves sheltered roughly 15,000 people during the Blitz, complete with a hospital, a cinema, a church, and "Caves Full" signs when capacity was reached → Passing the Knowledge — memorising around 25,000 streets — measurably enlarges the part of a cab driver's brain that handles spatial navigation → Cleopatra's Needle was already 1,500 years old when the Romans founded Londinium, and beneath it sits a Victorian time capsule holding photographs of twelve women named the most beautiful in England → When the Blitz began, the Tower's ravens were nearly all killed — bringing the prophecy that the kingdom falls without them closer to a test than ever before And at number one: there's a creature living in the London Underground whose famous origin story was taught in classrooms for decades as a textbook case of evolution happening before our eyes. In 2025, DNA pulled from museum specimens — some older than the Tube itself — proved the celebrated part of that story was never true. Where it actually came from isn't anywhere near London. Subscribe for more hidden corners of Britain.