This is art you can get into. An installation by the late Oiticica includes 10 cocoon-like hammocks where you can lounge while viewing projected images of Jimi Hendrix. A Tiravanija work lets you assemble a jigsaw puzzle of a Delacroix painting inside a house reminiscent of colonial-era Africa. February 27–February 13, 2011; Walker Art Center, Minneapolis, walkerart.org.