Pittsburgh's St. Patrick's Day parade may be one of the city's biggest parties -- and one of the biggest parades in general for the holiday,ranking as the moment largest in the world with 100000 spectators each year. This year's parade will be held on Saturday, March 11, or at 10 a.m. There's plenty of other things to do,too, including Irish unbiased in the Square before, and during,and after the parade, so you can party all day.
Source: cbslocal.com