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An exploration of time at the world-famous Prime Meridian Line
An exploration of time at the world-famous Prime Meridian Line
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Save big with one pass and five incredible experiences!
Save big with one pass and five incredible experiences!
Inclusions
Entry to:
Exclusions
Inclusions
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Validity
Inclusions
Exclusions
Validity
Go for: Guided tours
Duration: Flexible
Access to planetarium: No
Guide: Audio guide
Recommended tours
Go for: Combo tickets
Duration: Flexible
Access to planetarium: Depends
Guide: Audio guide
Recommended tours
Go for: Planetarium tickets
Duration: 30 mins
Access to planetarium: Yes
Guide: Yes
Recommended tour
Go for: Combo tours
Duration: Flexible
Access to Planetarium: No
Guide: Professional tour guide
Recommended tours
Learn about the stars at the Peter Harrison Planetarium. All the shows at the planetarium are led by expert astronomers from the Royal Observatory Greenwich. Visualizations, real-life space photography, and live commentary by astronomers add to the overall experience at the Peter Harrison Planetarium.
Stand on the historic Prime Meridian Line and put one foot towards the east of the line and the other towards the left. You are standing on both the eastern and the western hemispheres of the world at the same time! Standing on the Prime Meridian at the Royal Observatory Greenwich is included with your entry tickets.
If you look up while walking towards the Royal Observatory, you will see a distinctive onion-shaped dome. This dome is the roof of the Great Equatorial Telescope. Installed in 1893, the telescope was built by the Grubb Telescope Company in Dublin. The Great Equatorial Telescope is one of the largest refracting telescopes in the world and was originally designed to be used for astrophotography.
The Shepherd Gate Clock was the first clock to display the Greenwich Mean Time to the public. Installed at the gates of the Royal Observatory, the Shepherd Gate Clock displays twenty-four hours on its face, instead of the usual twelve hours. This means that when it is noon, the hands of the clock will be pointing straight down instead of straight up.
Designed by Sir Christopher Wren, the Octagon Room is the oldest part of the Royal Observatory Greenwich. The high ceilings and high windows of the Octagon Room were designed to provide astronomers with an uninterrupted view of the night sky. The high ceiling of the room also allowed astronomers to install some of the most advanced clocks of the age inside the room.
Designed by John Harrison, the Harrison Clocks are a beautiful amalgamation of innovative technology and stunning craftsmanship. Used mainly as a marine timekeeper, Harrison designed the H1, H2, H3, and H4 clocks. The Harrison Clocks were the first clocks that allowed ships to determine their longitude at sea. All four clocks, especially H1, are considered to be one of the greatest milestones in the history of clock-making.
Located in its original mounting in the Transit Circle Room at the Royal Observatory Greenwich, the Airy Transit Circle Telescope was designed by English mathematician and astronomer George Biddell Airy. It was this telescope that helped astronomers determine the location of the Prime Meridian in the world.
Royal Observatory Greenwich is open daily from 10am to 5pm. The last entry to the attraction is at 4:15pm.
Best time to visit: For a comfortable and hassle-free experience, the best time to visit the Royal Observatory Greenwich is during weekday mornings, just when the attraction opens. You can also plan your visit to the Observatory during the late afternoon as well.
Address: Blackheath Ave, London SE10 8XJ, United Kingdom | Find on Maps
Most visitors spend around 1-2 hours exploring the exhibits, Prime Meridian line, and taking in the views from the hill.
Yes! Knowledgeable guides are available for tours. Your tickets also include audio guides so you can learn more about each exhibit at your own pace.
Standing on the Prime Meridian line lets you straddle two hemispheres—perfect for that one-of-a-kind photo op! This is the only place on Earth where you can place one foot in the East and the other in the West.
The Observatory is family-friendly, but young children may find some exhibits challenging to understand. There are interactive sections and the planetarium that appeal to all ages.
Arriving 10-15 minutes early is generally enough, especially if you already have tickets. This gives you time to walk through Greenwich Park and enjoy the views.
Since part of the Observatory experience includes outdoor views, plan accordingly! The Observatory remains open rain or shine, though some outdoor exhibits may close temporarily during severe weather.
Yes! The Royal Observatory is part of Maritime Greenwich, a UNESCO World Heritage Site that includes other historic landmarks in the area.