Join Holly and Tracy as they bring you the greatest and strangest Stuff You Missed In History Class in this podcast by iHeartRadio.
https://www.iheart.com/podcast/stuff-you-missed-in-history-cl-21124503/
Why is there an underground city beneath Beijing?
The Beijing underground city may sound like the stuff of legends, but it's a real place built to escape Soviets. Check out our HowStuffWorks article to learn more about the fact and fiction surrounding the city underneath Beijing.
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