Chicago's Forgotten Lake Tunnels, Cribs, and Waterworks - IT'S HISTORY
Chicago's underground city
Chicago's Forgotten Island
Forgotten Streetcar Tunnels of Chicago - IT'S HISTORY
Hidden Chicago 2 with Geoffrey Baer
The Race to Reverse the River — A Chicago Stories Documentary
How An Epic Error Caused The Flooding In Chicago | Massive Engineering Mistakes
Suburban Chicago is Ancient?
Chicago water
Hidden Tunnel In Chicago
'Turn the tides:' Chicago river reversal on 'American Built'
Why does the Chicago River flow backwards?
Chicago's Lakefront with Geoffrey Baer
Part 2 of Chicago’s underground tunnels
Why Chicago DEMOLISHED the Largest Dome in America - The Federal building story - IT'S HISTORY
Why Chicago's Hidden Street has 3 Levels (The History of Wacker Drive)
Chicago's Fake Buildings - Secret Sub-Stations (the story behind them) - IT'S HISTORY
The Secrets of Chicago's Sewer System (and river pollution) - IT'S HISTORY
The Entire History of Chicago In 17 Minutes
Exploring Chicago's Toxic Abandoned Suburban Neighborhood