Admission ticket for the London Royal Observatory in Greenwich

Admission ticket for the London Royal Observatory in Greenwich

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The London Royal Observatory at Greenwich and its grounds
Britain's largest telescope and the history of the Greenwich meridian
The octagonal room and the Shepherd Gate clock
Breathtaking views over London

Essential information *

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Opening hours
10:00 AM - 5:00 PM

* All details will be sent to you upon reservation.


Discover the Royal Observatory at Greenwich, a centre dedicated to British astronomy and the place where the GMT meridian line was established!

It is in the complex of the Royal Museums at Greenwich that you can visit London's Royal Observatory.

The Royal Observatory Greenwich is located on the Greenwich meridian, the prime meridian, which serves as a reference for universal time and longitude and separates the Western and Eastern hemispheres. You can experience standing on either side of the meridian!

Inside the museum, you'll find a rich and comprehensive collection of instruments, tools and documentation on maritime navigation and astronomy. Here you can admire one of Britain's largest telescopes and visit the octagonal hall, designed by Sir Christopher Wren. Also known as the Great Star Room, this room features large windows specially designed for astronomers to observe the sky.

The audioguide included in the tour will tell you about the inventions and discoveries of the greatest scientists and inventors such as Isaac Newton and Albert Einstein. 

Finally, don't forget to watch the red time ball at Flamsteed House, which rises every day at 12.55pm to half mast height and emits a signal, while you enjoy the park and a breathtaking view!

Departure place

Good to know

  • Availability: from Monday to Friday (with some exceptions, see calendar)
  • Opening hours: 10am to 5pm (last entry at 4pm)
  • An audio guide is available in French

Price includes

  • Admission ticket for the London Royal Observatory
  • An audio guide

Price doesn’t include

  • Some of the museum's exhibitions
  • Food and drink
  • Any other extras



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