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The Royal Observatory

The Royal Observatory in Greenwich, outside London, England

This is where they keep the Prime Meridian—well, the marker for it—the line that marks 0° longitude and divides the Earth into East and West hemispheres. Inside are loads of historic scientific devices, including the four clocks made famous by the book Longitude.

A digital clock outside, set right at the Prime Meridian, lets you know down the millisecond exactly what time it is — the original Greenwich Mean Time, by which most of the world sets its clocks.


Intrepid Travel

This article was last updated in May 2007. All information was accurate at the time.

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Copyright © 1998–2010 by Reid Bramblett. Author: Reid Bramblett.