After weeks of anticipation and confusion, the listing for Sting's duplex apartment at the Brentmore at 88 Central Park West has finally turned up online. The 6,600-square-foot spread, which is listed with Halstead's Mark Friedman, features five bedrooms, grand staircase, and no less than 23 closets. And it can be yours for just $19 million! Take a tour for yourself after the jump.