London, UK
Today we took a river cruise on the Thames, and under the Tower Bridge, to Greenwhic in Greater London. After a quick jaunt through the Maritime Museum, we went up to the Royal Observatory to stand on the Prime meridan, the line of latitude that divides the western and eastern hemispheres. The Greenwhich time also provides the GMT (or Greenwhich Mean Time) for the U.K. In the Museum we did some research about the history of the trouble of cartographers comming up...