Danyang Kunsan Grand Bridge is listed in the Guinness Book of World Records as the longest bridge in the world. Construction of the bridge started in 2006 and was completed in 2010 after 4 years. After various tests, the bridge was opened to the public in 2011. Located in Jiangsu Province, China, the length of the bridge is 164.6 km. The construction cost 6.5 billion.