“Art of the Samurai: Japanese Arms and Armor” at the Met is a once-in-a-lifetime event for connoisseurs of all ages.

James Cohan Gallery presents its fifth gallery exhibition by American artist Bill Viola. It opens on Oct. 23 through Dec. 19, 2009.

13 of William Eggleston's images have been donated to the Whitney by Jonathan Sobel and Marcia Dunn, passionate photo collectors.