a city in southwestern Pennsylvania where the confluence of the Allegheny River and Monongahela River forms the Ohio River; long an important urban industrial area; site of Carnegie Mellon University and the University of Pittsburgh
"Visitors often travel to Pittsburgh, located at the confluence of the Allegheny and Monongahela Rivers in southwestern Pennsylvania, to explore its rich industrial history and world-class universities like Carnegie Mellon."
A city, the county seat of Allegheny County, Pennsylvania, United States.
"Pittsburgh is a major city located in western Pennsylvania that serves as the county seat of Allegheny County."
The name Pittsburgh combines the surname of British statesman William Pitt with a word meaning "fortified place." It was named in his honor when the city's founder established the settlement there.