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Address: Romney Road | Greenwich, London SE10 9NF, England
Phone Number: 44 20 8858 4422
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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 1,619 reviews
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  • 684
  • 605
    Very good
  • 230
  • 76
  • 24
We found the Prime Meridian!

A little disappointed in how much it cost to see George Airy's Prime Meridian, but it was a once in a lifetime opportunity. The grounds of Greenwich were pretty nice. We had a... read more

4 of 5 starsReviewed 3 days ago
Brunssum, The Netherlands

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1,619 Reviews from our TripAdvisor Community

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Level Contributor
10 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
5 of 5 stars Reviewed 2 days ago NEW

This is a great place to visit! The park itself it's lovely to walk through, and the view from the top of the hill is amazing - see how many sights you can spot! We visited the planetarium which is worth a visit, although the talks only last half an hour. The guided audio tour, which is included in the... More 

1 Thank Louise T
Sittingbourne, England, United Kingdom
Level Contributor
20 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 21 helpful votes
5 of 5 stars Reviewed 2 days ago NEW

This is the time of year to visit if your going by car. You can drive into the park and park right outside. The views over London are superb although they can be a bit hazy. If your interested in astronomy this is the place for you packed with displays and information. Add the Planetarium visit to your ticket and... More 

Thank Colin B
Brunssum, The Netherlands
Level Contributor
70 reviews
28 attraction reviews
common_n_attraction_reviews_1bd8 65 helpful votes
4 of 5 stars Reviewed 3 days ago NEW

A little disappointed in how much it cost to see George Airy's Prime Meridian, but it was a once in a lifetime opportunity. The grounds of Greenwich were pretty nice. We had a pleasant stroll on the surrounding grounds for free and recognized where Thor and Friends defeated the Dark Elves.

Thank Ivan_yes
Blackburn, United Kingdom
Level Contributor
62 reviews
22 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
5 of 5 stars Reviewed 3 days ago NEW

You can walk up the steep hill (long gradual pathway available for wheelchairs etc) and take in the atmosphere, see the lower outside meridian line, admire the great view over London & Canary Wharf etc without paying for entry, but if you want the full experience and visit the museums/ exhibits and see the planetarium shows, you will definitely get... More 

Thank LancsDuo
Valladolid, Spain
Level Contributor
182 reviews
90 attraction reviews
common_n_attraction_reviews_1bd8 79 helpful votes
3 of 5 stars Reviewed 3 days ago NEW

The review is about the Observatory, not the surrounding park or the village, so definitively I think it is a bit priced to get inside, mainly, as most tourists do, to get a picture in the meridian line, when you can also get the picture (maybe not as cool) from the outside. There are some exhibitions about the time when... More 

Thank JesLon
San Diego
Level Contributor
230 reviews
33 attraction reviews
common_n_attraction_reviews_1bd8 88 helpful votes
3 of 5 stars Reviewed 6 days ago NEW

I don't think so! The walk up the hill is pleasant, the views back to London are spectacular, but can't imagine what's in that observatory that's worth 10 pounds. Made me angry that prime meridian is marked on the pavement ONLY within the paid area.

Thank Basiluzzo
Level Contributor
23 reviews
14 attraction reviews
common_n_attraction_reviews_1bd8 17 helpful votes
2 of 5 stars Reviewed 1 week ago

To stand on the median line was fun but the audio tour of this place was all over the place. The first two exhibits was closed off but we werent told about it. Every other part of the guide told us to look to the left to see something that wasnt actually there. Evertone in the place looked as lost... More 

Thank johnC_9
Kent, United Kingdom
Level Contributor
45 reviews
17 attraction reviews
common_n_attraction_reviews_1bd8 28 helpful votes
5 of 5 stars Reviewed 1 week ago

Popped in but we looked around too. Great to be there on the hour to see the Red Ball drop. Great photo opportunities. Fantastic information here. Shop has lovely items.

Thank Tkdreje
Ashford, United Kingdom
Level Contributor
21 reviews
11 attraction reviews
common_n_attraction_reviews_1bd8 15 helpful votes
3 of 5 stars Reviewed 1 week ago

First off I have to admit that my wife and I went to the observatory expecting to see more about the stars and so initially we were a bit disappointed. If you're interested in navigation and timepieces then it's a must but the large telescope is almost an afterthought to the attraction so having taken a whistle-stop tour we decided... More 

Thank AlastairMac
Level Contributor
139 reviews
79 attraction reviews
common_n_attraction_reviews_1bd8 29 helpful votes
5 of 5 stars Reviewed 1 week ago via mobile

Interesting for history buffs as this place has had a critical role in modern chronology. The highlight is the 0* line where you can stand with one foot in the East and the other in the West. Overall an interesting place to visit in a day trip when in London.

Thank Payal G

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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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