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Quick, switch over to Vodacast to see the pictures I talk about in the episode!\nWe all lose things -- keys, wallets, patience -- but how do you lose an entire city?\xa0Hear the stories of three American towns built in a hurry but kept off the map, secure Soviet enclaves known by their post codes, ancient cities found by modern technology, and the ingenious engineering of underground dwellings.\nYBOF Book; Audiobook (basically everywhere but Audible); Merch\nReach out and touch Moxie on\xa0Facebook,\xa0Twitter,\xa0or\xa0Instagram.\nHang out with your fellow Brainiacs.\nSupport the show\nMusic by\xa0Kevin MacLeod, .\xa0\xa0\nLinks to all the research resources are on our\xa0website.\n\xa0\n\n\n\n\n\n\nSource:\n http://www.nationalgeographic.com.au/history/laser-scans-reveal-maya-megalopolis-below-guatemalan-jungle.aspx\n https://www.smithsonianmag.com/history/lost-city-cambodia-180958508/\n https://www.bbc.com/news/magazine-29245289\n https://www.citylab.com/design/2018/05/inside-the-secret-cities-that-created-the-atomic-bomb/559601/\n https://www.atlasobscura.com/articles/how-to-build-secret-nuclear-city\n https://www.theguardian.com/cities/2018/may/03/off-the-map-the-secret-cities-behind-the-atom-bomb-manhattan-project\n https://www.atomicheritage.org/history/soviet-closed-cities\n https://metro.co.uk/2015/05/28/theres-a-whole-town-in-australia-that-lives-underground-5219091/\n https://www.nationalgeographic.com/photography/proof/2016/09/coober-pedy-opal-mining/\n https://www.outback-australia-travel-secrets.com/coober-pedy-underground-homes.html\n http://www.bbc.co.uk/wiltshire/content/articles/2005/12/14/burlington_nuclear_bunker_feature.shtml\n https://theculturetrip.com/africa/south-africa/articles/a-lost-african-city-has-just-been-discovered-by-scientists/\n https://www.historicmysteries.com/derinkuyu-underground-city-cappadocia/\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices