Infinite
There is no better way to say it than what Paul Goldberger described for the New York Times in 1988:
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“This is the only city in America with an entrance. You slide and slither into most downtowns, passing through gradual layers of ever-more-intensely built-up sprawl, and you do not so much enter the center as realize after you are there that it is all around you. Not Pittsburgh. Pittsburgh is entered with glory and drama.”
If you haven’t experienced the entrance, it is a must. Out of all of the available attractions, driving into the city is probably the least appreciated. Some people drive through the Fort Pitt tunnel every day, and it never gets old. First impressions are very important, and Pittsburgh will make you fall in love with it every time you meet. It’s the Perks of Being a Pittsburgher.