(that might be "The Honeycomb"...) but either way, it's a sculptural building that gets more interesting as the light changes. Here, what was the best of my photos of it to show the scale and the vantage point it provides. It sits in the center of the Lincoln Park Nature Walk, just north of the city of Chicago.
@pamknowler : ) In the past, when I first saw this, it was early afternoon and I was unimpressed with the structure. But nook what the low light does to it! I captured several images with shadows that I like.