Ponte visconteo
Italy · Europe
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The Visconti Bridge at Valeggio sul Mincio is a medieval viaduct over the Mincio River built at the end of the 14th century by Gian Galeazzo Visconti, Duke of Milan. Initially conceived as a fortified dam to divert the Mincio water flowing to Mantua, it has served as a bridge since then. Today, the ruined central span over the Mincio is replaced by a steel structure.
Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.