A complex of tall, windowless buildings in the American Rust Belt hold the secrets to a lost empire of industry and wealth; experts investigate these mysterious structures to reveal why this once powerful metropolis is now home to abandoned ruins. Stories: 1) Silo City, Buffalo, New York; 2) Belarus, Eastern Europe; 3) Gin Drinkers Line, Hong Kong, China; 4) Waddomana Power Station, Tazmania, Australia
