To keep Chicago clean in the 1850s, engineer Ellis Chesbrough had the incredible idea to lift the city using jack screws.
Buildings, blocks and even neighborhoods were raised10 ft, (some were moved altogether!) to lay angled sewers underneath for draining.
During the process businesses proceeded without interuption, and by 1860, almost an entire acre of buildings, weighing about 35,000 tons, were lifted by more than 6,000 jack screws.
Tune in now to HOW WE GOT TO NOW to learn more.