<a href="http://www.bucktownarchitecture.com/wp-content/uploads/2013/07/IMG_7497-3.jpeg"><img class="alignleft size-medium wp-image-47" alt="IMG_7497-3" src="http://www.bucktownarchitecture.com/wp-content/uploads/2013/07/IMG_7497-3-300x190.jpeg" width="300" height="190" /></a>Exposed truss on the Boeing building taken from the architectural tour. This truss distributes weight from a missing corner cason to three other casons. Looks like an interesting structure.