Greenwich is a town in south-east London, England, located in the historic county of Kent and the ceremonial county of Greater London. It is situated 5.5 miles east-southeast of Charing Cross.
Greenwich is notable for its maritime history and for giving its name to the Greenwich Meridian and Greenwich Mean Time. The town became the site of a royal palace, the Palace of Placentia from the 15th century, and was the birthplace of many Tudors, including Henry VIII and Elizabeth I. The palace fell into disrepair during the English Civil War and was demolished to be replaced by the Royal Naval Hospital for Sailors, designed by Sir Christopher Wren and his assistant Nicholas Hawksmoor.
Wikipedia https://en.wikipedia.org/wiki/Greenwich
Coordinates 51°28'55.504" N -0°0'16.35" E