This year marks 350 years since The Royal Observatory in Greenwich was founded. Take a look at five astronomically great ...

Globe rolls along Longitude 0° 0' 0". The Meridian Line in Greenwich represents the Prime Meridian of the world, with a Longitude of Zero. Every place on Earth is measured in terms of its angle east ...

There are 24 time zones. There is an imaginary line running through the UK called the Prime Meridian. It runs through a place in London called Greenwich. The Prime Meridian splits the world into ...