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TwoShedsJackson1 t1_j4ugd7p wrote on January 18, 2023 at 9:42 AM

Reply to comment by fireaunts in TIL about SubTropolis, a giant former limestone mine under Kansas City that was converted into the world’s largest underground business complex. The 1,100-acre complex is accessed through tunnels, and as of 2015, 1,600 people worked there. by corn_dog_22

This is really interesting.What about water, toilets and sewage, food and organic waste?

There must be an air circulation system too because monoxide could build up in corners and that is deadly.