This imposing sandstone museum set back from the water on The Rocks side of Circular Quay offers wacky, entertaining, inspiring, and befuddling displays of what’s new (and dated) in modern art. It houses the J. W. Power Collection of more than 4,000 pieces, including works by Andy Warhol, Christo, Marcel Duchamp, and Robert Rauschenberg, as well as temporary exhibits. A fourth floor opened up in 2005 and part of its permanent collection is displayed there. This museum isn’t as impressive as major modern art museums in, say, London or New York; still, it’s worth at least 1 hour. Free guided tours are conducted midweek at 11am and 1pm and on weekends at noon and 1:30pm. The MCA cafe (tel. 02/9241 4253) is a nice spot, with good views of the harbor and Opera House.