There's some really cool statues in pittsburgh in the Cultural District, but the only pictures I can find are small and they don't open when you click on them. This is the only picture that I could find of one area
http://www.worldofstock.com/closeups/AAB1499.php
There's another place that is really cool, but I can only fin it on the bad Cultural District website.
http://www.pgharts.org/art/parklet.php I personally like the labrynth