> As the world’s largest movable land structure, the colossal hangar is a monumental feat of engineering. Built in 2010 and completed in 2019, it was designed t

> As the world’s largest movable land structure, the colossal hangar is a monumental feat of engineering. Built in 2010 and completed in 2019, it was designed to last 100 years and has played a crucial role in securing the site. With all that effort, it didn't last 6 years.