Pittsburgh is the second largest city in Pennsylvania, and the 22nd largest urban area nationwide. Downtown Pittsburgh holds substantial economic influence and is 25th in the nation for jobs within the urban core. Pittsburgh features 151 high-rise buildings, and 446 bridges, giving it the nickname ‘The City of Bridges’. Traditionally, Pittsburgh is known for its steel industry, but modernly, Pittsburgh’s economy is largely based on healthcare, technology, robotics, education, and financial services. Pittsburgh is regularly noted for its high livability conditions, and has even been ranked number one in several major publications.