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Royal Observatory Greenwich

#138 of 1,480 things to do in London
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Address: Romney Road | Greenwich, London SE10 9NF, England
Phone Number: 44 20 8858 4422
10:00 am - 5:00 pm
Closed now
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Sun - Sat 10:00 am - 5:00 pm

The prime meridian, zero degrees longitude, runs through the courtyard of...

The prime meridian, zero degrees longitude, runs through the courtyard of the Royal Observatory in Greenwich, England, which was founded in 1675 by King Charles II.

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TripAdvisor Reviewer Highlights

Read all 2,046 reviews
Visitor rating
  • 615
  • 542
    Very good
  • 219
  • 81
  • 26
Historical and interesting

I always wanted to visit Greenwich 'meantime' to see where time begins. It is a bit of an uphill climb to get to the observatory, but at 85 and 81 my husband and I made it. We... read more

4 of 5 starsReviewed 3 days ago
Colleen B
Tinley Park, Illinois
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2,046 Reviews from our TripAdvisor Community

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Showing 1,483: English reviews
Norwich, United Kingdom
Level Contributor
90 reviews
31 attraction reviews
common_n_attraction_reviews_1bd8 41 helpful votes
3 of 5 stars Reviewed yesterday NEW via mobile

A visit to see the Meridian line was certainly on my to do list and I can certainly tick it off now. The camera obscurer and links to Christopher Wren were certainly interesting but the other exhibits were rather tired. Visitors aren't allowed to go back to use the toilets after entering the shop once the final entry time is... More 

Thank sysolly
Tinley Park, Illinois
Level Contributor
256 reviews
52 attraction reviews
common_n_attraction_reviews_1bd8 66 helpful votes
4 of 5 stars Reviewed 3 days ago NEW

I always wanted to visit Greenwich 'meantime' to see where time begins. It is a bit of an uphill climb to get to the observatory, but at 85 and 81 my husband and I made it. We were able to stand across the median so that we could take photo's of one foot in the Western hemisphere and one in... More 

Thank Colleen B
Red Bank, New Jersey
Level Contributor
103 reviews
48 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
4 of 5 stars Reviewed 3 days ago NEW

Exhibits are very interesting. Clock collection is amazing. Audio tour is helpful. Site has a lot going on. I read some postings about a place to get a free photo of the mean line at the East Park entrance at the bottom of the hill. Not worth the time unless you are not going up to the observatory. However, many... More 

1 Thank David_Laurie6
London, United Kingdom
Level Contributor
104 reviews
39 attraction reviews
common_n_attraction_reviews_1bd8 31 helpful votes
3 of 5 stars Reviewed 4 days ago NEW

If you really want to stand on the Greenwich Meridian line, I would consider doing this somewhere else. It is tremendously expensive to visit this one spot, while the line technically goes around the globe, so there are numerous other places to do this. The observatory, on the other hand, is very interesting and has loads to keep you (and... More 

Thank Tertius L
Enfield, Ireland
Level Contributor
30 reviews
common_n_attraction_reviews_1bd8 36 helpful votes
4 of 5 stars Reviewed 6 days ago NEW

I've always wanted to visit the Royal Observatory Greenwich and on a recent trip to London I fulfilled this wish. My wife and I stayed in Ealing and we got the tube into London where we transferred on to the Dockland Light Railway (DLR) where our final stop was Greenwich. The trip on the DLR alone was very good as... More 

1 Thank Bridgewell
Melbourne, Australia
Level Contributor
57 reviews
42 attraction reviews
common_n_attraction_reviews_1bd8 45 helpful votes
5 of 5 stars Reviewed 6 days ago NEW

We walked from the Cutty Sark down by the river and up through Greenwich Park, which took us about 20 minutes. Although we were a bit puffed, the great view from the top was worth it. We could see the famous prime meridian line through the fence, but it took us a few minutes to work out that the ticket... More 

1 Thank Brian_from_Boronia
Pune, India
Level Contributor
113 reviews
47 attraction reviews
common_n_attraction_reviews_1bd8 25 helpful votes
3 of 5 stars Reviewed 1 week ago via mobile

The royal observatory has a £9.50 entry fee and has a tiny room with some old space observation equipment and the meridian line as displays. T is not worth the money tbh since the real gem in the scheme (the meridian line) is observable in other places in London as well for free. You won't get to do much at... More 

Thank Siddhesh P
Buckie, United Kingdom
Level Contributor
12 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 2 helpful votes
4 of 5 stars Reviewed 1 week ago

The Prime Meridian was something I always wanted to see. I wasn't too interested in the place as a whole but walked around to get some basic information. To stand on the Prime Meridian and to think that the world gets 'measured' from here is quite a thing. We were there at 12 noon. Amazing to think that so many... More 

Thank BobsMum64
Level Contributor
95 reviews
38 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
4 of 5 stars Reviewed 1 week ago via mobile

Normally I don't like crowded places but this I had to see as I am only in Greenwich for the weekend. This is such a busy place, there is hardly any place you can browse in peace. Thankfully the free audio guide device helped a little to muffle the noise. It took a while before we got to the Prime... More 

Thank Michelle B
Milford, Michigan
Level Contributor
188 reviews
84 attraction reviews
common_n_attraction_reviews_1bd8 33 helpful votes
4 of 5 stars Reviewed 1 week ago

It was interesting to see the Prime Meridian and learn about Greenwich Mean Time. Found out some facts I didn't know before!

1 Thank MimiandPapa2862

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Staying in Greenwich

Neighborhood Profile
Greenwich Mean Time starts here, so to speak, as the very concept of global time was established at Royal Observatory, just one of several buildings of architectural interest in Greenwich. Indeed, the whole of Greenwich's historic town center, its Royal Park and a number of related buildings (and one world famous ship, the Cutty Sark) make up the UNESCO World Heritage site known as Maritime Greenwich. Today a laser beam is shot out across the night sky from the Observatory to mark the location of the Prime Meridian. Other bold (some say brash) 21st century additions to the area include landmarks such as The O2 entertainment complex (previously known as the Millennium Dome) and the Air Line cable cars, which offer scenic transport across the Thames between North Greenwich and the Royal Docks.
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