The architecture of Tribune Tower alone is worth a stop, but what I love are all of the historical artifacts glued to the outside of the building. The story goes that the Tribune newspaper had its reporters start picking up historically significant rocks, building pieces, and artifacts from around the world when they were on assignment. They then glued them all around the outside of the first story of the building. With pieces from the Collesuem in Rome and Hamlet's Castle to name a few it is an impressive outdoor museum. I serious walked by this building dozens of times before I ever noticed them. When I did I was blown away.
435 N Michigan Ave, Chicago, IL 60611, USA