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Pittsburgh
is the second largest city in the Commonwealth of Pennsylvania
. It is the economic, cultural, academic, transportation,
and service hub of the Pittsburgh Metro Area. Pittsburgh features
a skyline of skyscrapers and dozens of bridges. In response
to the collapse of the steel industry in the 1970s and 1980s,
Pittsburgh 's economy has shifted to healthcare, education,
technology, and financial services. Because of its setting,
economic opportunities, low cost of living, and growing educational,
cultural and medical infrastructures, Pittsburgh is often
ranked as one of the nation's most livable cities.
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