Historic uptown elegance in downtown pittsburgh near steel plaza station the historic omni william penn hotel places you in downtown pittsburgh 4 blocks from heinz hall for the performing arts steel plaza t station is right across the road and a 16 minute ride takes you across the river to the carnegie science center and allegheny center pop art or baseball games you can visit the mattress factorys contemporary art installations and check out pop art at the andy warhol museum both are wit