"Chicago (and, let’s be honest, the world) has been waiting for this undulating tower by Jeanne Gang—the tallest building in the world by a female architect—to open for years, and the wait was worth it: Glorious city, lake, and river views, a stellar hotel gym, two restaurants, a world-class spa with an indoor pool and outdoor terrace, and a butler for every room (even in the entry-level category), all set in an easily accessible corner of downtown conspire to truly raise the bar on what a city boutique hotel can be. Bring your workout clothes. The roughly 12,000-square-foot Athletic Club is free to guests and has every brand and type of machine you love. There are also three group fitness rooms and a set schedule of classes, from yoga to mat Pilates. Sweat it out, then jump in the pool." - Elaine Glusac, Nicole Schnitzler