Pittsburgh is home to the University of Pittsburgh and is the second largest city in Pennsylvania. Pittsburgh is commonly referred to as the "Steel City" and also "The City of Bridges" for its 446 bridges. The city features 30 skyscrapers, two inclines, and has three rivers, the Ohio, the Monongahela, and the Allegheny River.
Besides the steel industry, Pittsburgh has led innovations in aluminum, glass, shipbuilding, petroleum, foods, sports, transportation, computing, and electronics. This placed Pittsburgh behind only New York and Chicago in corporate headquarters employment, second to New York in bank assets, and with the most U.S. stockholders per capita for most of the 20th century. This status as a global industry center left the area with renowned museums, medical centers, parks, research centers, libraries, a vibrantly diverse cultural district and the most bars per capita in the U.S.
Pittsburgh earned the title of America's Most Livable City by Places Rated Almanac, Forbes, and The Economist. Also, the National Geographic and Today named the city a top world destination.
Google, ANSYS, Uber, Intel, IBM, and Apple are among the 1,600 technology firms generating billions in annual Pittsburgh payrolls. The Pittsburgh area has been serving as the long-time federal agency headquarters for cyber defense, software engineering, robotics, energy research and the nuclear navy. Pittsburgh has a thriving start-up culture, that has been invigorated by organizations like the Pittsburgh Tech Council, AlphaLab, Innovation Works, and AlphaLab Gear.