was moved to new premises adjoining the Grange Shopping Precinct development in 1977. Commercial expansion continued in the early 1990s when the Pyramids Shopping Centre was opened. The previous market site has been redeveloped with the construction of two office buildings, primarily to house Land Registry and Department for Work and Pensions offices. Economic statistics In February 2010, the town had an overall unemployment rate of 8.2% (males 12.4%, female 4.1%) as against a national average of 4.4%. Demography In 2011, Birkenhead had a population of 88,818. The wider Urban Subdivision had a population of over 142,000. However, this latter figure includes areas such as Greasby and Frankby, which are separate from Birkenhead. These are the 2011 ethnic groups for the town: 93.5% White British 2.3% Other White 1.2% Mixed Race 2.6% Asian 0.2% Black 0.2% Other Landmarks Birkenhead Park is acknowledged to be the first publicly funded park in Britain. The park was the forerunner of the Parks Movement and its influence was far reaching both in Britain and abroad – most notably on Frederick Law Olmsted's design for Central Park. Designed by Joseph Paxton (later Sir Joseph Paxton) in 1843 and officially opened in 1847, with great festivity. The park's Grand Entrance, modelled on the Temple of Illysus in Athens, and its 'Roman Boathouse' are notable features. There are sandstone lodges at the three entrances, each with a different style of architecture, Gothic, Norman and Italianate. There are also two lakes and an ornate 'Swiss Bridge'. William Laird, a Scot, and his son John, were influential in the design of the town. Parts were laid out in a grid-iron pattern like Edinburgh New Town with similar architecture. The chief architect was James Gillespie Graham from Edinburgh. This grid pattern was centred around Hamilton Square which was started in 1826 and, apart from Trafalgar Square in London, contains the most Grade I listed buildings in one place in England. including Birkenhead Town Hall. A short distance from Hamilton Square are two other notable landmarks: the Queensway Tunnel Main Entrance and the Woodside Ferry Terminal. The film Chariots of Fire had scenes shot at Woodside. These scenes were as a representation of Dover in the 1920s. Other notable landmarks include Bidston Windmill on a ridge behind the town, Flaybrick Watertower and Birkenhead Priory & St. Mary's Tower. Transport Trams Birkenhead had the first street tramway in Britain. Opened on 29