With each step, the metal lattice of Ponte 516 Arouca wobbles slightly. Most suspension bridges do this to some degree, but it’s especially unnerving on the newly-opened bridge, which hangs 175 meters (574 feet) above a fast-flowing river. At 516 meters (1,692 feet) long, Ponte 516 Arouca has claimed the title for the longest bridge of its kind in the world. The bridge is located within Portugal’s Arouca Geopark, where tall mountains and narrow river valleys define the landscape. Ponte 516 Arouca spans the Paiva River, connecting the escarpment of…
