Pittsburgh is the seat of Allegheny County and with a population of 307,484 is the second-largest city in the U.S. Commonwealth of Pennsylvania. With a metropolitan CSA population of 2,661,369 it is the largest in both the Ohio Valley and Appalachia and the 22nd-largest in the U.S. Pittsburgh is known as both "the Steel City" for its more than 300 related businesses and "the City of Bridges" for its world record 446 bridges.
All stories in Pittsburgh
Many New Yorkers awoke to a bit of a surprise when "Kill all Jews" briefly made an appearance in their Twitter sidebar. On ...