The IBM building at 330 North Wabash was completed in 1972 and was the final American project of world-renowned designer Ludwig Mies Van der Rohe.
Officials say the building embodies distinctive characteristics of the modern movement, including straightforward structural expression.
A nine-block span of North Clark Street was also added. The stretch in Andersonville is closely associated with the Swedish community and includes several turn-of-the-century buildings.
