Original Hot Dog Shop. At this family-run stalwart, the mountain of fries that comes in even a small order borders on the ridiculous -- so no wonder the college kids keep coming back. Located on the campus of the University of Pittsburgh, "The Dirty O" has a reputation for decadent spuds: hand-cut and peeled Idaho potatoes, twice fried in peanut oil, and served golden and crunchy on a cafeteria tray. The Original even has its own dedicated fry station, where you can order them with sides of gravy, cheese, or ketchup. 3901 Forbes Ave.
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