A comprehensive (some 130 pieces) retrospective of Maurizio Cattelan’s works is on view at the Guggenheim.  Perhaps known as much as a provocateur as an artist, Cattelan’s pieces have often inspired controversy.  The Guggenheim’s show is eye-catching and initially seems messy.  The pieces are strung from the ceiling in the museum’s atrium in an amazing hodgepodge.  As you make your way up the spiral ramp, you notice single pieces; some things come into focus, others go out.  Some works are obvious, others less so.  In the end it’s not so overwhelming and there is a sense of well-coreographed fun.  The show (and show it is) runs through January 22nd.