"Topsy-Turvy: A Camera Obscura Installation"

Madison Square Park's newest work of public art utilizes one of the oldest photographic devices around: the camera obscura (the principle behind pinhole cameras), which inverts images and lends them a dreamy blur to project them. NYC artists Sandra Gibson and Luis Recoder's Topsy-Turvy, which turns the Flatiron Building on its head, is a giant, cylindrical camera obscura that will warp these projections as well, due to its shape. Three to five people can enter the walk-in installation at a time.