A curious case in Chicago's Irving Park neighborhood, this "castle" was designed for local hip hop impressario Rudy Acosta, though he never moved in. Waiting for a buyer's finishing touches, this 7,000-square-foot, 42 foot-high home is unfinished on three of its floors. Situated on an oversized city lot, the four bedroom, five bathroom residence includes two massive terraces and a full-floor master bedroom suite, as well as a recreation room and parking for multiple vehicles. Soaring ceilings, plenty of windows, and wide-open spaces lend a sense of possibility to this truly unique city property. View the listing.