The bridge at an altitude of 2,600 meters is still in use for more than 400 years, but I still don't know how to build it
Bridges are usually built over rivers, lakes and lakes , but many are built in the middle and people rave about these bridges . In particular , the bridges left over from the past dynasties still standing after wind and rain, so people have to admire the wisdom of the ancients. One of the four famous ancient bridges in Chinese history is the "Jialing Bridge", which is located in the southwest of Chongqing City, Sichuan Province, connecting with the Yangtze River. The bridge is about 100 kilometers long and 40 meters wide. It is said to have been very high when it was built. A bridge built at an altitude of 2,2600 meters is still in use 400 years later, it is not known how it was built.
The Shahra Bridge is a towering bridge located in the village of Shahra , Amran province, Yemen , with a history of more than 400 years. This bridge spans between the desert and the river. It is one of the oldest suspension bridges in the world. At the same time, it is a very peculiar bridge type. Because of its unique shape, it attracts a large number of tourists for sightseeing. It also attracts interest because of its unique structureand sturdy quality , and is known as the Bridge of Sighs by many tourists.
The village of Sahara is located on a high mountain, which is difficult to access , and the locals climb to it every time they go to the market . But here we see a peculiar phenomenon: when you go down from the top of the mountain, you will encounter a long mountain road; once you continue to climb along this road, there will be one after another steep mountain ridge. why is it like this? It doesn't matter if it's just an ordinary hill , but there is a section of road that goes through two mountains at an altitude of 2,600 meters , and they are very close , a dozen meters apart , but that's what the local villagers need to go downhill and then uphill time .
Climbing up and down at high altitudes is difficult and takes a long time, so the locals decided to build a bridge between the two mountains. This is the first time I saw this "Gaoligongshan Bridge". The bridge is 20 meters long, more than 6 meters wide, and about 5 meters high. The width of the bridge deck is less than 10 cm. There is no fixed structure under the bridge. Very strong and durable. It is said that the bridge was built by an architect who was brought in from outside the city , and the finished product is amazing . The whole bridge, except for the supporting points on both sides , is made of limestone and goes directly across the valley.
The whole bridge is about 20 meters long and 3 meters wide. Under the 90****bridge -meter -deep Grand Canyon, which is precisely a magical place. The Sahara Bridge is located in the desert of California, USA. Because it is very close to the canyon, it has become the most distant and narrowest road in the world - the Sahara Bridge. It straddles the Pacific Ocean and the Atlantic Ocean. If you stand on the bridge and look at it , you will find that there is a huge support point under the bridge, which is more than 90 meters high , and this support point is still a certain distance from the ground - that is under the Sahara Bridge On the huge platform of the Above the notch is a high platform, and above this platform is a low platform . So many tourists have such questions: in that era of material scarcity , how did people build such aWhat about the pillarless bridge ?
But no matter how successful the bridge is, it's still there, and more than 400 years later, it's still intact. From this point of view, this bridge is also a great work! In the past 100 years, many people want to visit the bridge, but in the end only one person can get here, and that is its owner - the United Kingdom. Although the bridge is partially damaged, its stability has not decreased, and the locals are still using it. The damaged canopy on both sides adds an adventurous element to the bridge, and more and more tourists want to challenge it.