Royal Observatory
Stand at the centre of world time. Discover the past, present and future wonders of astronomy at the centre of time.
Take an amazing journey through the historic home of British astronomy, Greenwich Mean Time and the Prime Meridian of the World.
Explore how great scientists first mapped the seas and the stars, stand astride two hemispheres on the Prime Meridian Line, see pioneering inventions and the UK’s largest refracting telescope, touch a 4.5 billion year-old asteroid, and travel the Universe at London's only planetarium
Read more at http://www.visitlondon.com/things-to-do/place/450876-royal-observatory-greenwich#J2dui5WIpboxDKE0.99