Royal Observatory Greenwich

5 keetoo-tick  OVER 14,600 TRIP ADVISOR REVIEWS

As Europeans took to the seas to explore the world and trade with other countries, astronomical information of sufficient quantity and accuracy to aid navigation, cartography and timekeeping was needed, including working out how to measure longitude.
Visit time 60 mins

• Stand on the historic Prime Meridian Line.
• See the remarkable Harrison timekeepers.
• Explore space in the Planetarium shows.
• View London from the Time and Longitude gallery.
• Guaranteed entry time

ℹ️ Know before you go

Interactive audio guide downloadable on arrival.
Guaranteed entry time
No cancellation available

📍 Location

Blackheath Ave, London SE10 8XJ

🕒 Opening Times

Daily 10.00am – 5.00pm. Last entry 4.15pm

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