Greenwich is a suburban borough of south-east London. It is the location of the Royal Observatory, through which the Prime Meridian runs; consequently Greenwich gave its name to the horological standard Greenwich Mean Time (GMT), which is also known as Universal Time Co-ordinate (UTC).
Greenwich was a centre for shipbuilding in the late medieval and early modern period, and was the location of a royal palace; the only relic of this is the Queen's House, designed by Inigo Jones; work began in 1616. The Royal Naval Hospital was largely built between 1696 and 1712, and was used as the Royal Naval College between 1873 and 1998. Part of the buildings became the National Maritime Museum in 1937.