Share your Royal Observatory Greenwich photos on Twitter and Instagram using #RMGreenwich for a chance to win Membership.
Explore the fascinating mysteries of time and space
"Make time to stand on the Prime Meridian-where East meets West. A once in a lifetime experience!"
★ ★ ★ ★ ★
Royal Observatory visitor
Mementos for stargazers and time enthusiasts
Royal Observatory Greenwich is a quick and easy journey from central London, by DLR, rail or boat