Enjoy magnificent views of the Chicago skyline while dining atop the John Hancock Center. Acclaimed contemporary American cuisine, an exquisite atmosphere and superb service make dining at The Signature Room a world-class experience. Hours: Brunch-Sat & Sun. 10:00am-2:30pm; Lunch-Mon.- Fri. 11am-2:30pm; Dinner: Sun.-Thurs. 5pm-10pm; Fri. & Sat. 5pm-11 pm. Res. Accptd., AE, V, MC, DC, CB, DS, $$$.