A misplaced decimal point, a forgotten valve, mixing up inches with millimeters, and a simple drill that swallowed an entire 1,300-acre lake. Welcome to The Dumbest Mistakes That Caused Disasters. In this eye-opening historical documentary and investigative breakdown, we count down the most facepalm-inducing, absurdly simple human blunders in history that spiraled into multi-million-dollar catastrophes, engineering collapses, and legendary disasters.
