👉 One of the most surprising engineering feats is the construction of the Millau Viaduct in France, a 1,512-meter-high cable-stayed bridge that stands as the tallest in Europe. Its engineering marvel lies not just in its height but in how it was built without any concrete foundations on the riverbed, relying instead on 36 massive pylons that are each 50 meters tall and made from high-strength concrete. The bridge's deck is supported by these pylons via a series of cables, and its design allows it to sway slightly in the wind, a critical feature given its height. This combination of innovative materials and precise engineering has made it a testament to human ingenuity, redefining what is possible in bridge construction.
