Watch the world's 10 top longest bridges

New Delhi: Human beings are wonderful creators. Right from the days of pyramids and the Great Wall of China, human beings have endeavoured to build marvellous strutctures. Bridges, too, are part of wonderful creations by human beings. When Alexander the Great went out to conquer the world from Greece, he used boat bridges to transport his army across rivers.Here we present you the list of world's top 10 longest bridges, the matter of fact is China has dual records for the longest bridges in the world. Here's the list:10. Donghai Bridge Donghai Bridge was made by Halcrow Group is one of the longest cross-sea bridges in the world. With a length of 32.5 km it connects Shanghai and the offshore Yangshan deep-water port in China. Completed in December 2005, it is a beam bridge with cable-stayed section, that allows the passage of large ships.9. Runyang Bridge Runyang Bridge is a bridge complex built over the Yangtze River in Jiangsu, China. With a length of 35.66km, the bridge links Zhenjiang on the south bank of the river and Yangzhou on the north. It is connected to two other bridges, where the south bridge is a suspension bridge, north bridge is a cable-stayed bridge. The bridge is part of the Beijing-Shanghai Expressway, the construction of the bridge costed around 5.8 billion Yuan.8. Hangzhou Bay Bridge Opened in the mid of 2008, Hangzhou Bay Bridge is a highway bridge that connects Jiaxing and Ningbo in Zhejiang, China. With a length of 35.673 km Hangzhou Bay Bridge is the longest sea crossing bridge in the world. The bridge is slightly S-shaped which helped it withstand the element and its he manufacturing cost was around US $ 1.7 billion. 7. Yangcun Bridge Yangcun Bridge, completed in 2007 is one of the first longest high speed rail bridge. With the length of 35.81 km, Yangcun Bridge supports the railway between Tian-jin and Beijing, in China.6. Manchac Swamp Bridge Located around the Pontchartrain Lake in the Louisiana, Manchac Swamp Bridge is one of the longest bridges in United States. A twin concrete trestle bridge, Manchac Swamo Bridge has the total length of 36.69 km.5. Lake Pontchartrain Causeway Listed as the longest bridge over water in the world by Guinnes World Records till 2011, Lake Pontchartrain Causeway has two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The bridge was opened in 1969, is supported by 9 500 concrete pilings. Lake Pontchartrain Causeway bridge has the length of 38.35km. 4. Bang Na Expressway Bang Na Expressway is a concrete pillar bridge in Thailand. The six lane elevated highway, Bang Na Expressway is 55km long and crosses is the Bang Pakong River. It was completed in 2000 and is officially known as the Burapha Withi Expressway.3. Weihe Grand Bridge Completed in 2008, Weihe Grand Bridge is a part of the Zhengzhou–Xi'an High-Speed Railway which connects Zhengzhou and Xi'an, in China. With th length of 79.732 km, Weihe Grand Bridge crosses, the Wei River twice.2. Tianjin Grand Bridge Part of the Beijing–Shanghai High-Speed Railway, Tianjin Grand Bridge s a railway viaduct bridge that runs between Langfang and Qingxian. It was completed in 2010 and was opened in 2011. With the length of 113.7 km, it is the second longest bridge in the world, and was recorded for the same in Guinness World Records in 2011.1. Danyang Kunshan Grand Bridge Located on the Beijing–Shanghai High-Speed Railway in China, Danyang Kunshan Grand Bridge is the longest bridge in the world, with a length of 164.8km. It took four years for the condtrustion of this bridge and was completed on 30th June 2011 and the cost of manufacturing for this bridge was about $8.5 billion. Danyang–Kunshan Grand Bridge currently holds the Guinness World Record for the longest bridge in the world.