Which architectural style is noted for being inspired by the Classical Greek three-part column structure?

The architectural style that is notable for its inspiration from the Classical Greek three-part column structure is Neoclassical architecture. This style embraces the use of classical elements, particularly the column forms that reflect Greek and Roman architecture, characterized by their base, shaft, and capital. Neoclassical buildings often include porticos with columns resembling the Doric, Ionic, or Corinthian styles, emphasizing symmetry, proportion, and grandeur.

Beaux-Arts and Brutalism have distinct characteristics that set them apart from Neoclassical architecture. Beaux-Arts is a style that combines elements from various historical styles, including Baroque and Renaissance, and while it may feature classical elements, it doesn't focus strictly on the Greek column structure like Neoclassicism does. Brutalism, on the other hand, is known for its raw concrete construction and strong geometric forms, moving away from historical styles entirely.

The Chicago School, while historically significant in the development of skyscraper architecture, emphasizes functional designs and innovations in steel-frame construction rather than a direct homage to classical columnar aesthetics. Thus, Neoclassical architecture stands as the clear answer due to its specific focus on the revival of classical Greek architectural forms and the adaptation of the three-part column structure.