Greenwich is a famous maritime district of south east London - 5.5 miles (8.9 km) from central London. An area of great historical importance, the town centre contains Maritime Greenwich - one of London's four UNESCO World Heritage sites - known for its naval history, connections with the Royal Family and as the location from which the Prime Meridian (0° longitude) is derived.
The major attractions are in the town centre, on the bank of the River Thames at the western end of the larger Royal Borough of Greenwich, which also includes Eltham and Woolwich. In the north of the borough, the Greenwich Peninsula (also known as North Greenwich) is home to the O2 Arena. Nearby Blackheath is a leafy area of grand historic homes and, whilst located in the London Borough of Lewisham, is easily accessible from Greenwich town centre.