Bridges are among the most trusted structures in everyday life, quietly carrying people and goods without much thought. Yet history shows that bridges can and do collapse. In this episode of The Curious Mind, we calmly explore why bridges collapse by understanding bridges as systems—made up of design choices, materials, environmental forces, and human decisions. Rather than focusing on fear or blame, this episode shows how failures happen gradually, how engineers learn from them, and why understanding failure helps build safer systems for the future.