Chengyang Bridge. Photo: mazakii that genius [Flickr] The wind and rain bridges were a type of bridge built by the Dong people (a minority ethnic group) in China. Because they live in the lowlands and the valleys with many rivers, the Dong people are excellent bridge builders. They are called "wind and rain" bridges because the covered bridges
Iron bridge at night. Notice how the bridge and its reflection make a perfect circle. Photo: Mark Haythorne [Flickr] The Iron Bridge, spanning the Severn river in Shropshire, England, isn’t a particularly large or ornate bridge, but it does have something that made it unique: it’s the first bridge made completely out of cast iron.
Pont du Gard, an aqueduct spanning the Gard River in southern France, is a masterpiece of Roman engineering. It wasn’t built to transport people (though there is a pedestrian footbridge on it) – instead, it was part of a complex aqueduct system that carried water over 30 miles (about 50 km) to the ancient Roman city of Nemausus (now Nîmes).
The Khaju Bridge in Isfahan, Iran, was built in the 17th century by Shah Abbas II. The bridge also serves as a dam, with sluice gates under the archways. When the gates are closed, the water level behind the bridge is raised to irrigate gardens alongside the Zayandeh River.The Khoju Bridge has two stories of arcades, marked by the distinctive intersecting arches decorated with richly colored tiles.