At 1,353 feet in the air, just looking down is going to quicken the pulse.
The Skydeck itself offers 360-degree views of up to 50 miles where sharp-eyed visitors can view four states from their perch: Michigan, Indiana, Illinois and Wisconsin.
Stepping out onto The Ledge: a 4.3-foot, glass-floored platform, jutting out from the Skydeck.
