Massive Engineering Mistakes

Engineering catastrophes in need of repair include a stadium on the brink of collapse, an upside-down bridge, and a massive subway project in crisis.

In San Francisco, California, residents in a luxury apartment block notice their floor isn't flat. Experts and witnesses analyse what happens to the building.

Experts hope to reveal the issues faced by a city with hundreds of leaning buildings, the world's scariest airport, and the world's biggest sewage pipe.

Experts investigate a skyscraper so dangerous it can melt cars, a stadium roof on brink of disaster, and a bridge fiasco.

Experts explore a giant sinkhole, a multi-million dollar road to nowhere, and a wind turbine on the brink of disaster.

Experts investigate a giant tunnel boring machine stuck underground, a village sinking into a mountain, and huge holes that could derail a train.