I had a chance to go to Pittsburg about 10 years ago. I was very surprised how pretty the city was. I was expecting smoke stacks, etc but drove out of the tunnell from the airport at night and saw what looked like a ski town. It was beautiful.
The city's signage codes, however, didn't help. I was hoping to grab a hamburger before I went to the hotel so I thought I would just drive up the freeway and pull over when I saw the first fast food sign towering in the sky. Never say one! It made for a beautiful city but also made one hunger and frustrated traveler!