Have you ever walked down a dense city street, glanced up at an apartment building, and noticed something deeply unsettling about the security bars on the windows? Instead of sitting flat and flush against the glass, they bulge outward into a strange, rounded, potbelly shape.
Most people glance at them and assume it is just a quirky architectural mistake or a bizarre modern design trend. But if you walk past these peculiar iron cages without knowing their true purpose, you are completely missing a fascinating, highly clever secret that has kept urban residents safe and resourceful for generations.Dictionaries & Encyclopedias
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