Pittsburgh has lots of old buildings in the heart of the city. I love these old brownstones, the arches and stonework.
Unfortunately half the time I was hanging out the car window trying to take photos. Or in some cases, shooting out the back window. The next time I'm there I promised myself I'll have time to actually walk the streets.
Bridges are great through a camera. Angles and reflections, arches of steel over cold water.
With all the freeways and overpasses in Pittsburgh it's great that you can actually park and walk under them in some of the parks.
Somehow or other I don't think traffic would appreciate me stopping mid-span for photos. Most people don't take kindly to photographers looking for a good shot.