Sᴜᴍɪᴛ on Instagram: "This viral clip captures a train crossing what looks like one of the world’s most intimidating railway bridges — the kind built decades ago when engineers relied on steel trestles and minimal foundations to span deep valleys and rugged terrain. These structures may appear fragile today, but many of them were engineered with remarkable precision, using triangulated steel frameworks designed to distribute weight evenly and withstand high winds, vibration, and the load of fully