At 311 South Wacker, you're just steps away from everything you need. Architecturally significant, 65-story, 1.3M SF office building located across from Willis Tower. Easily identified in the city's skyline as it is the 7th tallest building in Chicago. An unrivalled, glass-ceiling atrium soars 85 feet above a fine dining restaurant, fountain, and oasis of greenery. The building also includes a 46th-floor sky bobby with floor to ceiling windows that offer glittering views of the Loop and lake.