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Untold Secrets of Chicago: Delving Into the City's Underground Layers
Chicago, famously known as the "Windy City," is a bustling metropolis that boasts a population of around 2.7 million, making it the third-largest city in the United States. Each year, millions of tourists flock to the city to marvel at its towering skyscrapers and vibrant festivals. However, beneath the shiny facade of this urban giant lies an intricate network of underground tunnels, passageways, and hidden spaces — a veritable world beneath the bustling streets of Chicago.