Greenwich is a town, in the south eastern part of London. Greenwich, England defines both time and place for the whole world. All time is measured relative to Greenwich Mean Time (GMT) and all places have a latitude and a longitude according to Greenwichs' position. Greenwich is a place for serious history enthusiasts with a interest toward the maritime life.
A couple of places you need to visit in Greenwich are the The Royal Observatory and the National Maritime Museum. The Royal Observatory was custom-built in 1675 by King Charles II. It housed the scientific instruments used by John Flamsteed in his work on astrophysical tables.
Also you should visit the National Maritime Museum. It is the leading maritime museum of the United Kingdom, and one of the most vital in the world. The NMM houses a wide and mixed collection of exhibits relating to Britain's broad naval heritage; items range from ships' anchors to rowing barges.
King William Walk
Greenwich, England SE10 9JW