The majority of British enclosed shopping centres, the equivalent of a U.S. mall, are located in city centres, usually found in old and historic shopping districts and surrounded by subsidiary open air shopping streets. Large examples include West Quay in Southampton; Manchester Arndale; Bullring Birmingham; Liverpool One; Trinity Leeds; Buchanan Galleries in Glasgow; and Eldon Square in Newcastle upon Tyne. In addition to the inner city shopping centres, large UK conurbations will also have large out-of-town "regional malls" such as the Metrocentre in Gateshead; Meadowhall Centre, Sheffield serving South Yorkshire; the Trafford Centre in Greater Manchester; White Rose Centre in Leeds; the Merry Hill Centre near Dudley; and Bluewater in Kent. These centres were built in the 1980s and 1990s, but planning regulations prohibit the construction of any more. Out-of-town shopping developments in the UK are now focused on retail parks, which consist of groups of warehouse style shops with individual entrances from outdoors. Planning policy prioritizes the development of existing town centres, although with patchy success. Westfield Stratford City, in Stratford (London), is the largest shopping centre in Europe with over 330 shops, 50 restaurants and an 11 screen cinema and Westfield London is the largest inner-city shopping center in Europe. Bullring, Birmingham is the busiest shopping centre in the UK welcoming over 36.5 million shoppers in its opening year.