15. Royal Observatory
Address: Greenwich Park, London, SE10 9NF
Bookings and enquiries: 020 8858 4422
Museum of time and space, built by Sir Christopher Wren in 1675, and site of the Greenwich Meridian. This is the base point for world time and the site of Longitude 0 where you can watch the timeball drop at 1300 each day. Visitors can see the Astronomer Royal's apartments, the famous Harrison timekeepers (1735-60) with computer simulations, intricate instruments, Wren's Octagon Room and the largest refracting telescope in Britain.
Price: Free admission
Opening details: 10.00 to 17.00, seven days a week
Click here for more information about the Royal Observatory.
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