World's longest pedestrian suspension bridge opens in Portugal

Portugal's Institute for Research and Technological Development for Construction, Energy, Environment and Sustainability has completed a 516-metre-long pedestrian suspension bridge named 516 Arouca in northern Portugal.
Built in the Arouca Geopark, the 516-metre-long bridge is suspended 175-metres above the Paiva river and links two hills with granite cliff faces.
Top: the 516 Arouca bridge is 516-metres-long. Above: it stretches over the Pavia Gorge
The bridge was built by Institute f