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Royal Observatory Greenwich

#138 of 1,514 things to do in London
Certificate of Excellence
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Address: Romney Road | Greenwich, London SE10 9NF, England
Phone Number: +44 20 8858 4422
10:00 - 17:00
Closed now
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Sun - Sat 10:00 - 17:00

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

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Royal Observatory Greenwich is the place where the longitude zero line is marked and admission cost is about £10. It's a little bit far from London's main attractions so it takes... read more

4 of 5 bubblesReviewed 6 days ago
Thalita D
Brasilia, DF
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2,151 Reviews from our TripAdvisor Community

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Showing 1,553: English reviews
Lymm, United Kingdom
2 reviews
5 of 5 bubbles Reviewed 3 days ago NEW

Too litle time unfortunately to see all that I wanted. So, I'll be back one day! Fascinating story of the importance of astronomy for travellers and shipping especially And the race between astronomy and horology to solve the crucial longitude problem. (latitude is easy)

Thank Tim A
Kingston upon Thames, United Kingdom
Level Contributor
326 reviews
76 attraction reviews
common_n_attraction_reviews_1bd8 178 helpful votes
5 of 5 bubbles Reviewed 5 days ago NEW

It is some years since I have visited the Observatory but I was immensely impressed. The £10 entrance fee to the Observatory itself allows you to visit various museums, the original house and various other attractions. It is well worth a visit and is suitable for young children will see some magnificent timepieces and various other exhibits. The views from... More 

Thank IANandARI
San Diego, California
Level Contributor
71 reviews
41 attraction reviews
common_n_attraction_reviews_1bd8 16 helpful votes
5 of 5 bubbles Reviewed 6 days ago NEW

East truly does meet west here, where the Prime Meridian divides the World. There is a fee to enter the main grounds, and it is worth it to learn more about the challenges of accurate navigation, and the role that time, stars, and planets played in solving this problem. There is an audio tour that is part of your admission... More 

Thank Ben S
Brasilia, DF
Level Contributor
71 reviews
43 attraction reviews
common_n_attraction_reviews_1bd8 21 helpful votes
4 of 5 bubbles Reviewed 6 days ago NEW

Royal Observatory Greenwich is the place where the longitude zero line is marked and admission cost is about £10. It's a little bit far from London's main attractions so it takes a while to get there.

Thank Thalita D
Los Angeles, California
Level Contributor
32 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 8 helpful votes
5 of 5 bubbles Reviewed 6 days ago NEW via mobile

Bought the Astro Ticket online which includes the Sky tonight show and the entry to the planetarium. There is parking right outside the Planetarium and the entry was easy and smooth. I didn't print out the tickets as it was good enough to show them on my phone as an e-ticket. You must arrive on time otherwise you will not... More 

Thank Greenbirds1
Hastings, United Kingdom
Level Contributor
11 reviews
10 attraction reviews
common_n_attraction_reviews_1bd8 2 helpful votes
4 of 5 bubbles Reviewed 1 week ago

I did not go in, but looked though the gates as didn’t have the money to spend to go in. Great views on London can be viewed from there especially if you like taking photos.

1 Thank bottomleybradley2015
London, United Kingdom
Level Contributor
182 reviews
79 attraction reviews
common_n_attraction_reviews_1bd8 85 helpful votes
5 of 5 bubbles Reviewed 1 week ago

The Royal Observatory is exceptional and a 'must see' attraction. It is the place where the longitude zero line is marked on the ground. The Observatory also houses the first four marine chronometers created by John 'Longitude' Harrison. The fifth is housed in the Clockmakers' Museum located on the second floor of the Science Museum. Shipping and everyone else used... More 

Thank J150505
Billericay, England
Level Contributor
193 reviews
56 attraction reviews
common_n_attraction_reviews_1bd8 116 helpful votes
3 of 5 bubbles Reviewed 2 weeks ago

I visited the Royal observatory with a group of children and we managed to spend nearly four hours here, including lunch, and keep the kids occupied. The highlights are the planetarium with a talk about the stars and planets (I have always been fascinated by the stars etc), the 'hands-on' displays - children love to press buttons and turn handles... More 

Thank go9ers
Kingsbridge, United Kingdom
Level Contributor
60 reviews
32 attraction reviews
common_n_attraction_reviews_1bd8 6 helpful votes
5 of 5 bubbles Reviewed 2 weeks ago

This exhibition is free and well worth seeing. There is a junior section as well as adults showing views from earth etc. You do run the gauntlet with noisy school parties so bide your time.

Thank chrisatbracondale
Colchester, United Kingdom
Level Contributor
56 reviews
26 attraction reviews
common_n_attraction_reviews_1bd8 24 helpful votes
4 of 5 bubbles Reviewed 2 weeks ago

Our Italian friends wanted to visit Greenwich, they certainly were not disappointed. The views from the top overlooking the park gives a wonderful perspective of the old and new. As ours was an autumn trip, the colours were absolutely stunning. Certainly recommend for a family day out. We came via Westminster pier by river launch using Oyster cards.

Thank Graeme H

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Staying in Greenwich

Neighbourhood 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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