While Chicago has many other skyscrapers which are taller, shiner, bigger, more modern.....etc, the Tribune tower is a Chicago icon considering its age and style.
It was built 100 years ago (1923-25) in an amazing neo Gothic style. It has a fab location on the plaza just after the Dusable bridge, adding to its beauty.
Pay attention to unique worldwide stones embedded into its facade, each one is marked. Enter the lobby and admire it - further you cannot go.
Imo, it is the most elegant and stylish office bldg worldwide, along with the Chrysler bldg in NYC.