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Royal Observatory Greenwich

#138 of 1,501 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 2,097 reviews
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An interesting place to visit

This is a bucket list thing to do. You can straddle the Prime Meridian here & see fascinating exhibits on clocks & astronomy. There is an audio guide that explains all of the... read more

4 of 5 bubblesReviewed yesterday
Kansas City, Kansas
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2,097 Reviews from our TripAdvisor Community

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Showing 1,519: English reviews
Wellington, New Zealand
Level Contributor
379 reviews
170 attraction reviews
common_n_attraction_reviews_1bd8 144 helpful votes
5 of 5 bubbles Reviewed yesterday NEW

The Old Royal Observatory was built in 1675 on a site selected by Sir Christopher Wren. Originally it was used by British astronomers who used the Royal Observatory as a basis for measurement. The building is often called Flamsteed House after the first Royal Astronomer. The building now houses a museum which is absolutely fascinating to those with an interest... More 

Thank Peter C
Kansas City, Kansas
Level Contributor
171 reviews
89 attraction reviews
common_n_attraction_reviews_1bd8 94 helpful votes
4 of 5 bubbles Reviewed yesterday NEW

This is a bucket list thing to do. You can straddle the Prime Meridian here & see fascinating exhibits on clocks & astronomy. There is an audio guide that explains all of the exhibits. There is a modest admission cost, but it is well worth it for people interested in clocks & astronomy.

Thank harryatkck
Level Contributor
74 reviews
25 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
5 of 5 bubbles Reviewed yesterday NEW via mobile

The Royal Observatory was actually a much more interesting place to visit than I had imagined. Of course the prime meridian is rightly world famous, so obviously I had to have a pic with a foot on either side lol It's approached through Greenwich park, then up a short but very steep hill. You are rewarded with fine views on... More 

Thank Andythebaggie
Level Contributor
68 reviews
62 attraction reviews
common_n_attraction_reviews_1bd8 12 helpful votes
2 of 5 bubbles Reviewed yesterday NEW via mobile

I use to visit this museum and Greenwich Park many times and all the time it was free. The observatory has now introduced an entrance charge and my opinion is that it is not warranted for what you get to see. For this reason, I say a visit here is not necessary. Walk Greenwich Park and go to the top... More 

Thank Happy_Holidays_7654
Palm Harbor, Florida
Level Contributor
124 reviews
49 attraction reviews
common_n_attraction_reviews_1bd8 25 helpful votes
5 of 5 bubbles Reviewed 2 days ago NEW

The Royal Observatory is at the top of a hill in Greenwich. It is a short walk from the Greenwich DLR stop but the last 500 feet are up a relatively steep hill. There is a gentler path for those who don't want or can't do the climb, but it is a 20 minute longer path. You have to pay... More 

Thank uhmwpe
Level Contributor
138 reviews
79 attraction reviews
common_n_attraction_reviews_1bd8 71 helpful votes
5 of 5 bubbles Reviewed 4 days ago NEW via mobile

This is one of those places I've always wanted to go and see. If you are going then get organised first because if you want to do the Planetarium on the same day, you need to book in advance. We missed out. I had no idea it would be so popular. We went end of October and even late in... More 

Thank geekie_gal
Bushey, England, United Kingdom
Level Contributor
115 reviews
52 attraction reviews
common_n_attraction_reviews_1bd8 46 helpful votes
4 of 5 bubbles Reviewed 4 days ago NEW

When we visited part of this attraction was closed and very busy. Audio guides, in a variety of languages, supplied free of charge. Well worth a visit but check that it is all opening before you visit

Thank Richard C
Level Contributor
10 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 1 helpful vote
4 of 5 bubbles Reviewed 5 days ago NEW via mobile

Attended the observatory for a tour with friends. The venue was very busy and cramped with people. The facilities were good and clean with plenty of people and staff available for assistance if needed. The amount of stairs were a struggle for older friends but we managed.

Thank David B
London, United Kingdom
Level Contributor
14 reviews
3 attraction reviews
5 of 5 bubbles Reviewed 5 days ago NEW

Excellent for a day out in London with all the history of Greenwich naval buildings, superb interiors and the Meridian Line.Every place on the Earth is measured in terms of its angle east or west from this line. Wonderful historic day out.....and leave time to into the "Cutty Sark" - the 19th Century Tea Clipper. Very enjoyable.

Thank John O
Raleigh, North Carolina
Level Contributor
3 reviews
common_n_attraction_reviews_1bd8 1 helpful vote
4 of 5 bubbles Reviewed 6 days ago NEW

Great audio tour, very old designs for clocks and longitude measure are still there and well maintained. Right next to the naval museum, and you get a great view of the skyline. Worth a visit.

Thank deelemmas

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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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