The Royal Observatory, Greenwich

The Royal Observatory in London’s Greenwich is the home of Greenwich Mean Time and the famous Prime Meridian of the World - 0° 0’ 0”! Built for the purpose of finding longitude at sea, architect Sir Christopher Wren’s Royal Observatory is also a museum of time and astronomy. Check out the early Tompion clocks and displays on navigation at sea that show how Britain led the world in global exploration and trade. Greenwich was endorsed by international agreement in 1884 as the Prime Meridian of the world, and you will be able to stand astride the very line that separates East and West!

Pay a visit to the Royal Observatory and see how the Astronomers Royal used to live and work inside Flamsteed House, the building first erected on this site. The Astronomy Centre lets visitors try their hand at being an astronomer and touch a 4.5 billion-year-old meteorite!

Visitors will be able to see:    
Meridian Line/courtyard
Camera Obscura 
Meridian Building, including 3 telescope transit rooms 
Time for Society gallery
Great Equatorial Telescope
Shepherds Gate Clock
Flamsteed House
Dropping of the Time Ball
Time for the Navy Gallery