Paper in three dimensions

There's a neat pop-up ad in a lot of current magazines, for summerhouses designed by Michael Graves. They've all been the round pavilion so far. The structures are sold through Target, but made by Lindahl Cedar Homes, to be constructed on site either by the buyer or by the manufacturer. It's interesting that they're denominated "pavilions" and not, say, "gazebos." Gazebo's had altogether too much use recently. A structure of this sort used to be either a summerhouse, a pavilion, a belvedere, or a casino when I was a kid.