Cities of the Underworld (2007)

S2E11 Stalin's Secret Lair

Moscow, a city renowned for its formidable rulers and hidden truths, has evolved into a bustling urban center. Yet, beneath its busy streets, remnants of its tumultuous history and Stalin's chilling legacy linger. The extensive underground network is so expansive that contemporary Moscow faces the risk of collapse. Don embarks on a journey to explore the city’s depths, uncovering tunnels used to evade Stalin’s merciless enforcers, secret metro lines, and concealed bunkers that tell stories of a bygone era.