Short stretch, but I think the 'burgh people will agree: taking out of towners down Potomac Avenue from Dormont to Greentree. Seriously, it's as good as any roller coaster.
That pales in comparison to where 51 hooks onto 88. It would be nice if the road wasn't made for unicycles. I always think I'm going to die on that one.
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It is all 33girl's fault. ~DrPhil