Free Admission Thursday from 10am to 5pm at Chicago Cultural Center - see INFO below. As Chicago grew, its residents took heroic measures to keep pace. In the 1850s, they raised many of the streets five to eight feet to install a sewer system and then raised the buildings, as well. Unfortunately, the buildings, streets and sidewalks were made of wood, and most of them burned to the ground in the Great Chicago Fire of 1871. The Chicago Fire Department training academy at 558 W. DeKoven St. is on the site of the OLeary property where the fire began. The Chicago Water Tower and Pumping Station at Michigan and Chicago avenues are among the few buildings to have survived the fire. More Info below.