Discover the hidden secrets behind chicagos secret weapon used to combat the citys cruel winters learn to navigate the winding passages of one of the most unique urban terrains in america chicagos pedway system the pedway pedestrian walk way spans nearly 5 miles in length and it is an assortment of underground corridors building concourses food courts train stations and sky bridges along the way guests hear interesting stories about chicagos past present and future and revel i