The Royal Observatory

Stand on the Prime Meridian of the World, explore historic Flamsteed House, and unravel the mysteries of time and space.

The observatory played a major role in the history of astronomy and navigation and was one of the first-ever state-funded scientific institutions in the field. Stand on the longitude that splits the Earth into the eastern and western hemisphere, the Prime Meridian.

Check out John Harrison's iconic timekeepers and the Great Equatorial Telescope, before exploring the remarkable Flamsteed House, Astronomer's Royal Apartments, Time Galleries and the Octagon Room. Of course, no trip to the observatory without standing on the Prime Meridian of the World. Bring the whole family down to unravel the mysteries of time and space!