Royal Observatory Greenwich

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Blackheath Avenue
London, England SE10 8XJ
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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4.03,719 reviews
Photo of Kenneth111
Excellent Tour Guide Paul
1/15/2025

Excellent guided tour by Paul. Well worth the extra five pounds per person. Revealed all the details...

Photo of vichy
Even if you're not into astronomy or science - definitely worth a visit!
12/13/2024

I was of two minds when I was deciding whether or not to visit - it's the prime meridian, so I thoug...

Photo of bastetgreen
Where longitude begins!
10/30/2024

What an amazing place, with so much history and so much to see--the terrific view from the top of th...

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United KingdomEnglandRoyal Observatory Greenwich