Royal Museums Greenwich

Royal Observatory

Science Museum and Historic Site · Greenwich West
Blackheath Ave, Greenwich, Greater London, SE10 8XJ, United Kingdom
Closed until 10:00 AM tomorrow (Show more)
  • Mon–Sun
    • 10:00 AM–5:00 PM
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Home of the Prime Meridian of the World, London's only planetarium, the Harrison timekeepers and the UK's largest refracting telescope.


Based on 550 votes

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  • What you need to know
    "Don't miss the Prime Meridian and the view of Greenwich nearby!"(8 Tips)
    Bellerbys College
    "... visitor. Follow the meridian line, marked in gleaming brass in the pathway up..."(5 Tips)
    Sean I.
    "Avoid the observatory during half-term, it's mobbed with children"(5 Tips)
    Jagadish G.
    "Excellent views of London City."(4 Tips)
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82 tips and reviews.

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  • scenic views
  • prime meridian
  • meridian line
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  • uaezozo

    Astronomy Photographer of the Year 10 am - 5pm

    uaezozo · 1 week ago
  • Michael H.

    Lovely buildings, peaceful surroundings and an informative museum. Well worth the entry.

    Michael Holdsworth · 2 weeks ago
  • Mònica


    Mònica · October 12
  • Alexandre C.

    Take a picture of you standing on both Western and Eastern Hemispheres ;)

    Alexandre Curiel · September 25
  • Olga G.

    A must see.

    Olga Gonzalez · August 14
  • Aybige C.

    Stand on the Worlds Famous Meridian Line

    Aybige Cantürk · July 28
  • Kuba G.

    Don't miss units stencil just by the exit.

    Kuba Gołacki · July 4
  • Kevin M.

    London's only planetarium

    Kevin McCulley · June 12
  • Adrià A.

    Really interesting museum about how we struggled to measure time and distances accurately throughout history

    Adrià A (SU2) · April 24
  • Yarn L.

    Be prepared to hike up a steep hill, but the view is rewarding.

    Yarn Lam · April 5
  • Nerijus M.

    Beautiful views of Canary Wharf

  • JK

    Don't miss out the true +0GTM at the Prime Meridian!

    JK · February 14
  • Jose L.

    It's a reaLy small museum, bad to me was the fact that many galleries were on maintenance... The best for me was the "0 meridian line"

    Jose Lopez · February 6
  • Chris t.

    Great views from the top and interesting exhibitions. Some free to enter.

    Chris the vegetarian · January 11
  • Lucas G.


    Lucas G · December 20, 2014
  • Bharati W.

    If you've come this far, you gotta take a picture with feet on either side of the Prime Meridian! Just outside the gates, you can get an amazing view of London from the gardens.

    Bharati Wilde · November 8, 2014
  • Lauren

    Small museum with a few cool interactive exhibits that will make you feel like a kid for the day. Don't miss the Prime Meridian and the view of Greenwich nearby!

    Lauren · October 5, 2014
  • Jamie D.

    Best views of London

    Jamie Dumbill · September 13, 2014
  • A

    the place where time begins

    A · August 30, 2014
  • JT

    One of Londons not to be missed attractions

    JT · August 8, 2014
  • Eddie S.

    Amazing views of London. Not quite as good as 'One Tree Hill' which is elsewhere in Greenwich Park

    Eddie Sharkey · August 7, 2014
  • SIY A.

    Entrance fee £7

    SIY AUY · April 19, 2014
  • Andrew P.

    If you just want to stand across the meridian, outside of the fenced area that costs to enter it's marked on the ground. On the N side of the Observatory (towards the river) through the black gates.

    Andrew Palmer · March 21, 2014
  • Stephen W.

    Stunning location with incredible views over London. If you want to stand on the Meridian line you can avoid the entry fee by heading to the marker under the courtyard to the right of the entrance.

    Stephen Waddington · December 29, 2013

    The home of Greenwich Mean Time (GMT) and the Prime Meridian. This marks the official starting point for each day, year and millennium and divides the East and West Hemispheres of the earth. Read more · December 22, 2013
  • Rick H.

    You can straddle the Prime Meridian for free - The demarcation is also available OUTSIDE the main gate along the wall that runs underneath the Prime Meridian Sculpture on the museum grounds.

    Rick Howard · December 3, 2013
  • Emm

    Well worth the visit. John Harrison's prototypes & the winning H4 chronometers are awesome to see!! Inspiring story!! :)

    Emm · September 1, 2013
  • Steve K.

    £4.80 for parking via blackheath entrance for 4hours maximum stay

    Steve Kirwin · June 2, 2013
  • Karin H.

    It's a hike to get up to the Observatory from the National Maritime Museum, so make sure you leave some time for the walk. Also, look into wheelchairs for anyone with mobility issues.

    Karin Hill · May 16, 2013
  • Steve K.

    Worth a visit. Owner Paul is very helpful.

    Steve K · February 9, 2013
  • ginsu

    GMT zero!Prime meridian of the world!

    ginsu · December 31, 2012
  • Leonardo G.

    Simply amazing.

    Leonardo G. de Souza · December 20, 2012
  • Javier M.

    One of my favourite places in London. The gardens are lovely and the visits to the main buildings are a must-do from time to time.

    Javier Miranda · October 7, 2012
  • Josh W.

    you may enjoy it!

    Josh Wood · August 17, 2012
  • Jagadish G.

    Excellent views of London City. Wonderful place to catch Sunrise & Sunset

    Jagadish Gandhi · May 13, 2012
  • Julio Guido M.

    Take a Photo in meridian!!!

    Julio Guido M. · April 22, 2012
  • Gabriela I.

    Hard road...till there!!!

    Gabriela Iulia · April 20, 2012
  • Louise

    Awesome place to take panoramic photos from, the height and sites around make an amazing view! See for yourself ;)

    Louise · March 19, 2012
  • James R.

    It's actually FREE!

    James Reid · February 21, 2012
  • Sandra B.

    Love it !!!

    Sandra Bairrao · February 18, 2012
  • Jane R.

    Just £7 entrance for fascinating exhibitions on time, longitude and chance to stand on meridian line :-)

    Jane Richards · January 21, 2012
  • Ryan D.

    very good evening with the stars tour, even in the rain!!

    Ryan Dodd · January 4, 2012
  • bockje

    I was looking for @astro_andre but couldn't find him, where in God's name is he?

    bockje · January 2, 2012
  • Joe W.

    Absolutely fabulous 'surprise trip' for the missus if you're in the part of town. Book a show in advance. Cheap and mind blowing.

    Joe Walton · September 11, 2011
  • Sean B.

    Shame that's it's now pay, after many years of being free. The view from the hill, once you've managed the steep climb to the top via the paved walkway, is stunning. I look out now and wonder that w

    Sean Brady · July 22, 2011
  • Bellerbys College

    A must see for any visitor. Follow the meridian line, marked in gleaming brass in the pathway up to the observatory and contemplate the Earth's rotation and the meaning of time Read more

    Bellerbys College · June 25, 2011
  • George A.

    Great place to go in fab surroundings and one of the best views anywhere in London.

    George Andreas · May 26, 2011
  • Adrian R.

    On a nice day, watch the sun set over London from the top of the hill — stunning.

    Adrian Rowbotham · March 24, 2011
  • Adrian R.

    Well worth a visit. Fascinating story of the importance of timekeeping for navigation. The phrase “On the ball” has its routes here.

    Adrian Rowbotham · March 24, 2011
  • andrew w.

    There is a fab comedy photo opportunity at reception near the meteorite...

    andrew wong · March 5, 2011

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