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Philadelphia City Hall
by eagleapex, published
I have wanted to print this for over a year, but it took forever to fix and I finally started over. The file came from Google 3D warehouse http://goo.gl/b6hCb and their licensing is very vague.
Printed at http://www.hive76.org/
Make Philly proud!
The SketchUp file is just about manifold. The problems are the repeated flat image faces.