Primanti's is Pittsburgh in sandwich form. it embodies all that would help one get what it means to be in pittsburgh, through a bite of the sandwich. I'm not kidding. as most things you do in pittsburgh, it goes well with iron city beer or any beer at that. the sandwiches have fries, tomatoes and slaw on it. and its yummy. the chili cheese fries are just greasy yummy.
straight off, i'm a bit of a food snob. but i respect food that has somehow been able to help you understand the city's history and the people. i would suggest having a primantis at the end of the night of going out, or right before you go and do some sight seeing of the city. this city has an amazing character and great history in the hard working men and women. and primantis is what these people eat.
go steelers.