Signalling Wildly Through the Glass

The latest incarnation at this ever-changing site is a subtle rendition of a house:

After wondering about the rotating window installations for quite some time, I finally found out that they are the work of artist Maggie Ellenby, and her artist's statement is one of the most enjoyable I've read. If you want to get some sense of how people have reacted to her windows, you can read some comments here.