Hardly visible threads connect the swings to the sail, making it billow. The swings are suspended from the ceiling, which is very high, so the swings are very slow, which is grand. The biggest thrill is lying on the ground under the billowing sail. It's like a waterfall. Installation by Ann Hamilton at the Park Avenue Armory (park ave at 66 st). December 5, 2012 — January 6, 2013.