Heres another wonder, its pretty good but the actual building in real life is basically just a rectangle so pretty plain
It was built in 1973 and at that time it was the tallest building in chicago and 4th biggest in the world. It is now the third tallest in chicago at 1136 feet.
Version 2: 8/10/13: UV mapped it, much more game friendly now, looks better
Aon Center 2016-10-05