The formerly abandoned airship hanger.
Above is the world’s largest freestanding building, an airship hangar built a decade ago at an abandoned Soviet military base south of Berlin. The $110 million hangar — 1,181 feet long by 688 feet wide by 351 feet high — held a massive airship that entrepreneur Carl von Gablenz hoped would prove that such vehicles were ideal to deliver massive industrial machinery like oil rigs and wind turbines. But in 2002, von Gablenz’s company, Cargo Lifter AG, was out of cash. A Malaysian firm, Tanjong, bought the hanger for $24 million and converted it into Tropical Islands Resort, a huge water park.