The Peninsula Spa by ESPA on the 20th floor has an indoor pool, sundeck, eucalyptus steam room, and fireplace-equipped lounge—not to mention fabulous views of the Windy City. Read more.
Head to Jean-Georges Vongerichten’s Pump Room for reasonably priced farm-to table fare. For dessert, get the salted-caramel ice cream sundae—it’s unbelievably delicious. Read more.