The House on the Bridge

Surely there's a functional purpose to the little shack ontop of this bridge, but from my naive perspective, it made me think of an inconvenient little house. Be careful when stepping out the front door.

Took this shot while walking over to Mile 20 of the Chicago Marathon. There were great shots to be had looking in either direction off the bridge. In the near opposite direction to this shot, is an open playing field with the backdrop of the city behind it.