Though it used to be a steel mill town, Pittsburgh has become a high- tech metropolis that is ranked among the U.S.'s most livable cities. Famous for its friendly ethnic neighborhoods and downtown architecture, there is much to see and do for residents and visitors alike. Check out the great view of Mt. Washington and the Golden Triangle (downtown Pittsburgh where the Allegheny and Monongahela Rivers meet to form the Ohio River). You can spend d...
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