Royal Observatory

sights / Architecture

Royal Observatory information

London , England
Greenwich Park, Blackheath Ave
Getting there
Train: DLR Cutty Sark
Train: DLR Greenwich
Train: Greenwich
More information
adult/child £9.50/5, with Cutty Sark £18.50/8.50
Opening hours
10am-5pm Sep-Jun, to 6pm Jul-Aug
Something wrong?
Submit a correction

Rising south of Queen's House, idyllic Greenwich Park climbs up the hill, affording stunning views of London from the Royal Observatory, which Charles II had built in 1675 to help solve the riddle of longitude. To the north is lovely Flamsteed House and the Meridian Courtyard , where you can stand with your feet straddling the western and eastern hemispheres; admission is by ticket. The southern half contains the highly informative and free Weller Astronomy Galleries and the Peter Harrison Planetarium .

In 1884 Greenwich was designated as the prime meridian of the world, and Greenwich Mean Time (GMT) became the universal measurement of standard time.