Pittsburgh is a large city in Pennsylvania with a population of about 2.5 million in its metropolitan area. Although Pittsburgh was built on steel, coal and heavy industry, the city has come a long way from its industrial past. The city has a diverse ethnic and architectural heritage, which has earned Pittsburgh the title of America's "most livable city". There are direct flights to the city from most of the major airports in the United States, in addition to a number of destinations in Canada and the Caribbean. Currently the only direct route from Europe is a seasonal service from Paris operated by Delta Air Lines, which may limit cheap flights to the city, and there are no direct flights from Doncaster or any other UK airport. However, another viable option is to fly directly to another US airport and transfer to the city using a low-fares airline (Southwest Airlines provide cheap flight to the airport). You can find cheap flights to New York, for example, using our online flight comparison tool. Pittsburgh is home to a number of outstanding museums, with the Carnegie Museums in Oakland being particularly noteworthy. The Carnegie Museum of Natural History has an extensive collection featuring vast palaeontology and geology exhibitions. The Carnegie Museum of Art houses an impressive collection of classical and modern works by many internationally renowned artists. If you have a passion for architecture, Frank Lloyd Wright's legendary "Fallingwater" is just a short drive from Pittsburgh. The Waterfront Complex is a mammoth collection of shops and restaurants in the heart of the city centre and should satisfy all your shopping desires.