Who designed Chicago federal center?

The Chicago Federal Center was designed by the renowned architect Ludwig Mies van der Rohe. Completed in 1974, it features a modernist architectural style characterized by its minimalist form and use of steel and glass. The complex includes the Kluczynski Federal Building, the Dirksen U.S. Courthouse, and the Post Office, all of which exemplify Mies's principles of simplicity and functionalism.