Awesome glowrock. I love your "zoomed in" style. It's more interesting.
The 3 yellow bridges are referred to as the "3 sisters" built in the mid '20s.
http://en.wikipedia.org/wiki/Three_Sisters_(Pittsburgh)
I love this one. It reminds me of all the tiny little alleys I used to cut through when i went to school downtown. The tightness of our CBD is one of the intangible feelings you get that is often hard to translate to photos (although not in this case).
Love the density from that angle. Three PNC is such a nice looking building.
Also, that French bistro to the right, Palate Bistro is quite good. Check it out sometime if you like sampling different kinds of food. I met the owner at a downtown business function once. Nice guy.
Great tour. We're looking forward to lots of awesome threads from you.