4.6
Science & natural history museums
Royal Observatory Greenwich
London, United Kingdom
The Royal Observatory Greenwich, established in 1675, is famed for marking the Prime Meridian at 0° longitude, influencing global navigation. Its 18th-century Flamsteed House features a time ball that still drops daily at 1 p.m.
Good to know
- Tickets
- Book ahead
- Best time
- Early morning
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