Chicago is already famous for its skyline, but its latest architectural wonders come with an added benefit: You can live in them. Well, maybe some of them. But one can dream of a place in the Gold Coast’s No. 9 Walton. The building’s 67 units start at around $1,320 per square foot , which gets you neighbors with last names like Griffin, Heyward, Toews, and Lurie. Not in your budget? Rub elbows with local aristocrats at the luxe residence’s restaurant, Adalina. Over on the river, Jeanne Gang’s sinuous 101-story triple tower, the St. Regis Chicago, offers 1,100-square-foot one-bedroom condos for $840,000, with an array of amenities, including an outdoor pool and a golf simulator. Mere mortals can stay at its soon-to-open 192-room hotel, which has its own spa, pool, and sundeck.