Portsmouth:
Portsmouth City located in the county of Hampshire on the south coast of England. Portsmouth is the UK's only island city and is located on Portsea Island. It is commonly nicknamed Pompey. The administrative unit itself has a population of 197,700, which forms part of the wider Portsmouth conurbation, with an estimated 442,252 residents within wider the urban area, making it the 11th largest urban area in England. At the 2001 census it was the only city in England with a greater population density (4,639/km² (12,015/sq mi)) than London as a whole (4,562/km² (11,816/sq mi)), although many of London's individual boroughs had a much greater density.
A significant naval port for centuries, Portsmouth is home to the world's oldest dry dock still in use and home to many famous ships, including Nelson's flagship HMS Victory. Portsmouth has declined as a naval base in recent years but remains a major dockyard and base for the Royal Navy and Royal Marine Commandos whose Headquarters resides there. There is also a commercial port serving destinations on the continent for freight and passenger traffic.
The Spinnaker Tower is a recent addition to the city's skyline. It can be found in the recently redeveloped area known as Gunwharf Quays.
The Portsmouth Urban Area covers an area with a population well over twice that of the city of Portsmouth itself, and includes Fareham, Portchester, Gosport, Havant (which includes the large suburbs of Leigh Park), Lee-on-the-Solent, Stubbington and Waterlooville.
The suburbs of Portsmouth, and Southampton to the west, arguably form a conurbation stretching from Southampton to Havant on the M27/A27 road along the coast, and north to Clanfield on the A3 road.