Royal Observatory Greenwich & Prime Meridian Entry Tickets

- Stand on the famous Prime Meridian Line at the Royal Observatory Greenwich, the birthplace of Greenwich Mean Time. - Watch the iconic time ball drop at 1pm each day, a maritime tradition once used by ships to set their chronometers for accurate navigation at sea. - Discover the stories behind the exhibits through a free multilingual audio guide, also available in British Sign Language. - Explore the Octagon Room, designed by Sir Christopher Wren, and marvel at the Great Equatorial Telescope, one of the largest telescopes in the UK. - Upgrade to the Royal Museums Greenwich Day Pass to explore the National Maritime Museum and Queen’s House, or go on an early access guided tour of the Royal Observatory.