An airy glass and steel Chicago contemporary, this Lincoln Park townhome is a veritable gallery space well suited for art collectors or entertainers. A column of light is brought to the core of the three-story residence via a 42-foot center atrium. The $5.7 million home has 12 generously proportioned rooms and three bedrooms and three-and-a-half bathrooms, including a cozy office/library with floor-to-ceiling shelving. A spectacular patio looks out on the skyline and provides one of the best glimpses of the home itself, which glows through walls of glass. [via realtor]