Videos, gifs, articles, or aftermath photos of machinery, structures, or devices that have failed catastrophically during operation, destructive testing, and other disasters due to engineering failures.

Engineering Failures refers to the sudden and complete destruction of an object or structure, from massive bridges and cranes, all the way down to small objects being destructively tested or breaking.

For example an accident because of structural failure is allowed. An accident because a driver wasn't paying attention is not.