It’s spelled incorrectly these days. “Willis” Chicago Board of Trade to the right with sculpture of Ceres, Goddess of Grain, on top.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71836099@N07">Marlin Keesler</a> from Streamwood, IL
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/cityrunningtourschicago/46684380705/">Sears Tower</a>