Throughout history some of mankinds proudest moments have come at the hands of itsengineers. In the ancient world the Colossus at Rhodes, the Pyramids of Egypt, the Great Wall of China and modern triumphs like the Hoover Dam, the Space Shuttle and the Golden Gate Bridge, all have the power to awe us and make us feel proud to be human.But error is inevitable in all human endeavours and when the undertakings are engineering feats of enormous proportions, the smallest mistakes may have devastating consequences. An engineering disaster involving a passenger jet can jeopardise hundreds of innocent people. And if a nuclear or chemical plant is involved, it can mean death for thousands. For the first time in history, engineers now have the power to wipe out entire cities, by mistake.In 18 thrilling episodes, History investigates the worlds most notorious engineering failures, from the devastating effects of Hurricane Katrina to the sinking of an off-shore oil rig. Using a combination of real-life footage and state-of-the-art special effects this series examines not only what went wrong, but what can be learned from these spectacular disasters.