191 North Wacker Drive is a nice fit for the neighborhood. A glass block that makes the most of its riverfront setting by complementing the blue-green waters of the Chicago River with its own blue-green glass. At the top of the front of the building, the glass is white and behind it lights illuminate it like an long vowel accent, or perhaps a crystal eyebrow. Whatever the case, it’s immediate neighbor, 333 West Wacker Drive usually gets top billing, but this structure deserves a second look, as well. It doesn’t have the advantage of being on a curve in the river, but it does have a curved lobby, which allows the corners of the building to hang over the street below.