Not-so-authentic Irish: a Celtic knot tattoo. Tattoo parlors in Ireland say almost all the customers requesting this are American. Christa Burns/Flickr hide caption

itoggle caption Christa Burns/Flickr

Galindo's "zapatello" uses gears and cranks to hit a shoe and glove on a drum made of a tire and rawhide. Richard Misrach/Fraenkel Gallery, San Francisco, Pace/MacGill Gallery, New York and Marc Selwyn Fine Art, Los Angeles hide caption

itoggle caption Richard Misrach/Fraenkel Gallery, San Francisco, Pace/MacGill Gallery, New York and Marc Selwyn Fine Art, Los Angeles

Milton's Mary's Turn also features Mary Cassatt and Edgar Degas paintings hanging on the wall. Click here for a closer look. Courtesy of Peter Milton hide caption

itoggle caption Courtesy of Peter Milton

Phil Stanton (from left), Chris Wink and Matt Goldman are the founders of the theatrical performance troupe Blue Man Group. Jemal Countess/Getty Images hide caption

itoggle caption Jemal Countess/Getty Images

Andy Warhol's Triple Elvis [Ferus Type] is set to be auctioned at Christie's, and expectations are high — but Warhol's estate won't see any of the money. Christie's Images LTD. 2014 hide caption

itoggle caption Christie's Images LTD. 2014