Elizabeth Tower (Big Ben)
London, SW1A 0AA
+44 20 7219 3000
Big Ben is the name of the clock inside the famous tower that also forms part of the Houses of Parliament
, but also extends to the entire structure that was renamed Elizabeth Tower in 2012. Its impressive mechanism weighs in at over 5 tons, and the pendulum, which beats once every two seconds, weighs 203 kilograms (447.53 pounds). The clock was named Big Ben after the First Commissioner of Works, and since 1885 a light above it has been lit while the House of Commons is in session. Residents can schedule a time to climb the clock tower. Unfortunately, non-citizens are not permitted to climb the clock tower.