Manchester is a major city in the northwest of England with a rich industrial heritage. It lies within the United Kingdom's second-most populous built-up area, with a population of 3.2 million. It is fringed by the Cheshire Plain to the south, the Pennines to the north and east, and an arc of towns with which it forms a continuous conurbation. Home to two major football teams; Manchester United and Manchester City - the city of Manchester is the third-most visited city in the UK, after London and Edinburgh. It is notable for its architecture, culture, musical exports, media links, scientific and engineering output, social impact, sports clubs and transport connections. Manchester Liverpool Road railway station was the world's first inter-city passenger railway station; scientists first split the atom, developed the stored-program computer and produced graphene in the city. The 2018 Globalisation and World Cities Research Network had Manchester ranked alongside Edinburgh and Birmingham as Beta cities.