* The lobby contains the moving sculpture "The Universe" by Alexander Calder.
* The lobby floor is decorated with metal tiles in a stylized design based on the bundled tube structure.
* Sears executives chose to build a single tall headquarters building over an alternative proposal for twin towers at half the existing tower's height.
* The Skydeck occupies the 103rd floor, the highest non-mechanical floor in the building. It has its own entrance on Jackson Boulevard, and attracts approximately 1.5 million visitors per year.
* Before the tower was developed, its site was split in half by West Quincy Street. Sears paid the city of Chicago $2.7 million for the street segment.