Media Summary: Go inside SubTropolis, the underground city housing Hollywood treasures, 'cool' companies. What are all these cars doing here? Who are the people in these bizarre caves doing The Hidden Metropolis Beneath Kansas City Full HD
The Hidden Metropolis Beneath Kansas City - Detailed Analysis & Overview
Go inside SubTropolis, the underground city housing Hollywood treasures, 'cool' companies. What are all these cars doing here? Who are the people in these bizarre caves doing The Hidden Metropolis Beneath Kansas City Full HD Description What if everything you know about America's surface is only half the story? In 1996, construction workers accidentally discovered a sealed tunnel ... to SubTropolis, the world's largest underground business complex, carved into a former limestone mine
