What Lies Beneath Chicago?

Exploring Chicago's Underground Pedway

Chicago's Underground River EXPLODES to Surface — City Officials Warn of Catastrophic Collapse

What's Underneath Chicago? Exploring (Lower) Lower Wacker Drive

Forgotten Tunnels Under Chicago - EXPLORING The History of Chicago Tunnels - IT'S HISTORY (VIDEO)

these guys heard rumours of the Chicago underground tunnels

Part 1 of Chicago’s underground tunnels