333 Wacker Drive

333 West Wacker Drive is a highrise office building in Chicago, Illinois. On the side facing the Chicago River, the building features a curved green glass façade, while on the other side the building adheres to the usual rectangular street grid. The building was completed and opened in 1983.

The building is noteworthy because of it's large glass facade that sits right next to the branch-split of the Chicago River, in the heart of the city. It's very hard to miss.