Chicago has poured $4 billion into its “Deep Tunnel” project, a network of tunnels and reservoirs that will eventually be able to hold upwards of 20 billion gallons of water. Some argue that the city ...

Chicagoans know the dread of driving on Lower Wacker and the joys of the Pedway system, but recent viral videos are claiming to unveil other parts of “Underground Chicago” — from eerie tunnels to full ...

Here’s a look back at what happened in the Chicago area on May 24, according to the Tribune’s archives. Is an important event missing from this date? Email us. Cook County Circuit Judge Frank Wilson ...