This tour explores some of the best hidden details, secret buildings and spaces, and untold stories that add wonderful bits of color and texture to the overall narrative of Chicago. On this tour, we will explore the famous and mysterious Chicago Pedway, a system of underground tunnels connecting 40 blocks downtown, popping in and out of buildings to see beautiful and fascinating interior spaces, before exploring some of the "secrets" in plain sight near Millennium Park and the world-famous Art Institute.