Headquarters of Murphy/Jahn Architects. Helmut Jahn's showroom occupies the dome at the building's summit.
For the first fourteen years of the building's life it contained a 22-story car lift inside its core. Delivery vehicles would enter on Lower Wacker Drive and ride up to jewelry merchants to make safe transfers.
The building is featured in scenes from 2005's "Batman Begins", with Batman perched on one of the turrets rising at the corner of the dome's base.
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