875 N. Michigan Ave (John Hancock Center)

The tower's series of stacked Xs are immediately recognizable, making it one of the most well-known profiles in the city. It represents a remarkable marriage of art and engineering and stands as a testament to the brilliant partnership of Bruce Graham and Fazlur Khan, colleagues at Skidmore, Owings and Merrill.

On this lunch-hour tour, we learn how Graham and Khan designed a 100-story structure that could withstand the powerful winds that whip off Lake Michigan. When it was built, the tower was the world’s second tallest building. On a clear day, it still provides spectacular views of the Windy City from all sides.

Masks are no longer required for guests visiting the Chicago Architecture Center or on our walking tours. We do suggest guests carry a mask with them on Walking Tours as every interior visited has the option to require masks. Although masks are no longer required, guests are welcome to continue wearing them.

Notes:

• Portions of this tour take place outdoors. This tour does not include a visit to the observation deck.
• You can access the lower-level lobby through the building's sunken plaza.
• Advance reservations required. Tickets go off sale at 4pm the day prior.
• Your safety is our priority. The itinerary of this tour may be altered in accordance with health and safety policies and considerations.
• Ticket price includes entrance to the Chicago Architecture Center within 7 days of your tour. View the CAC's hours.