Good magazine has a feature on green schools that features the Interdistrict Downtown School in Minneapolis. I used to walk by the school every day on my way to work. Apparently the big glass window in the front is a supplemental solar heating system in the winter. Cool. Our old house had one of those. I called it the porch.

The article doesn’t mention it, but I believe they have a playground on the roof. Pretty sweet, though losing a ball over the fence would really suck.