Bill Viola's video installations.
Ocean without a Shore
Venice Bienale 2007
"as though the dead were returning temporarily through this invisible barrier"
Five Angels for the Millennium
From the YouTube liner notes: "Imagine: a hall, 110 meters high, 67 meters diameter, never ending echo... 5 amazing video screens of 15 x 18 meters. The angels dive into the water or appear out of it; sometimes the water is on the bottom and the air on top, sometimes vice versa. Some films play forward, some backward. Always, however, they play so slowly, that a 'real' second is stretched to 20 minutes."