Views of London from the Royal Observatory Greenwich – an observatory situated on a hill in Greenwich Park, overlooking the River Thames. It played a major role in the history of astronomy and navigation, and is best known for the fact that the prime meridian passes through it, and thereby gave its name to Greenwich Mean Time. There is actually a physical line where one can stand on both the East and West of the prime meridian.

London Skyline from Royal Observatory Greenwich

London from Royal Observatory Greenwich