By Graham Dolan

Every year, thousands of people come to the Royal Observatory at Greenwich to have their photograph taken on the Prime Meridian Line - Longitude 0 degrees - as they simultaneously stand in the Eastern and Western Hemispheres at the same time. But what is the purpose and history of the Greenwich Meridian? What other points in the world - and the UK - lie along it? What links the line with navigation, timekeeping and the stars?

This lively and entertaining book takes you on a whistle-stop tour from the North Sea coast of England, through Greenwich, to France, Spain, Africa and Antarctica, explaining all the facts about the line along the way.

Written by Graham Dolan the Science and Astronomy Education Manager at the Royal Observatory of Greenwich.

Full colour illustrations throughout.

• Paperback.
• ISBN: 9780948065507