Incredible Engineering Blunders

Former aerospace engineer Justin Cunningham tries to keep the Glasgow Tower turning; Tomo Umewaka helps engineers in Osaka keep their airport from sinking into the sea.

Justin climbs on top of a stadium roof that is held up by air and in danger of collapse; checking out a new fleet of submarines that are too heavy to float.

Justin travels to Turkey to uncover the truth behind a landslide that wiped out a ski jump resort, then jets off to Gibraltar to see one of the craziest airports in the world.

Justin heads to London's Walkie-Talkie building to unearth the science behind a skyscraper melting a car.

Justin braves the turbulent North Sea as he goes inside an offshore wind turbine to see how engineers are fixing a fault that could cause these structures to fall into the sea.

Justin investigates giant potholes in Louisiana; in London, he gets a sneak preview of the city's vast Crossrail project.