House I - Roy Lichtenstein
Painted in Lichtenstein's almost cartoon-like style but all is not as it seems here. The structure comprises of two sides that are inside out. The next photo shows this.
It creates an optical illusion that messes with your depth perception so that when you've got your head round seeing what is actually there and you move off, if you keep watching it as you walk the structure appears to spin.
It's been said (by Pete and Dud I think) that the sign of a good painting is when the eyes follow you round the room. Is the sign of a good sculpture when the whole thing follows you round the garden?
I've uploaded a video of the effect to YouTube although it's not showing up yet - suppose it needs to get converted first.
At the National Gallery of Art Sculpture Garden. This wasn't on my ad-hoc itinery. I only happened across it on my way across the National Mall from the FBI to the Smithsonian Air and Space Museum. I'm pleased I did cut through though as there were a few interesting sculptures.