London: Royal Observatory Greenwich Entry


Welcome to Royal Observatory Greenwich in London. Walk between eastern and western hemispheres at the Royal Observatory Greenwich, for centuries the epicenter of advancing humanity’s understanding of space and time. Founded in the 17th century to map stars guiding British sailors, the Observatory’s work revolutionized navigation. Learn how the Prime Meridian was established here in 1884, placing Greenwich at the center of global geography and marine cartography.
Stand with one foot in either hemisphere along this storied line. Enjoy views over the Thames and London from Flamsteed House, whose Octagon Room displays scientific tools of Astronomers Royal like Halley, Airy and more.


With an admission ticket to the Royal Observatory in Greenwich, London, you can see the Greenwich Meridian Line and see the home of space and time. Discover the ancient location of British astronomy and take a position on the Meridian Line.

  • Stand astride the Meridian Line with one foot in the eastern hemisphere and one in the west
  • Walk in the footsteps of royal astronomers and learn about the wonders of space
  • Get one of the best loved views of London from Greenwich Park


  • Entry ticket
  • Self-guided visit
  • Multilingual downloadable guide
  • Planetarium show

Tour Plan

What to Expect

Visit Mercury, Venus, Mars and beyond within the towering planetarium. Touch a meteorite slice in the hands-on Astronomy Centre. From latitude to lunar landings, interstellar discoveries to marking global time itself, immerse yourself in the questing spirit and universe-expanding innovations begun or championed at this legendary British scientific hub.

Meeting Point

Royal Observatory Greenwich.

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Cancellation Policy

Free Cancellation:

Cancel up to 24 hours in advance for a full refund


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