Subtropolis - The World's Largest Underground Business Complex (S01E04)

Title: Subtropolis - The Largest Underground Business Hub Plot: Beneath Kansas City lies an expansive cave, stretching 55 million square feet and located 150 feet underground, that serves as a home to numerous businesses aiming to reduce expenses and enhance operational efficiency. Within its depths, you can discover an impressive collection of 500,000 vintage Hollywood film reels, stamps valued at two billion dollars, one of the nation's most significant cheese collections, and the world's most secure data storage facility.