Pittsburghst

Pittsburgh (pronounced /ˈpɪtsbərɡ/) is the second-largest city in the U.S. Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of Appalachia[6] and the Ohio River Valley, and nationally, it anchors the 22nd largest urban area in the United States.[7][8] The estimated population of the city in 2009 was 311,647,[9] while the seven-county metropolitan area was estimated at 2,354,957.[10] Downtown Pittsburgh retains substantial economic influence, ranking at 25th in the nation for jobs within the urban core and 6th in job density.[11] The characteristic shape of Pittsburgh's central business district is a triangular tract carved by the confluence of the Allegheny and Monongahela rivers, which form the Ohio River. The city features 151 high-rise buildings,[12] 446 bridges,[13] two inclined railways, and a pre-revolutionary fortification. Pittsburgh is known colloquially as "The City of Bridges" and "The Steel City" for its many bridges and former steel manufacturing base.

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key west steel drum band