On December 27, 2010, China unveiled the world’s longest sea bridge. It stretched 26.4 miles, five miles further than the distance between Dover and Calais and longer than a marathon.

It is the equivalent of 174 Tower Bridges, and links the main urban area of Qingdao city, East Chinas Shandong province, with Huangdao district, straddling the Jiaozhou Bay sea areas.

The project took four years and cost 5.5 billion pounds to build. It is almost three miles longer than the previous record-holder, the Lake Pontchartrain Causeway in Louisiana.

The World's Longest Bridge in ChinaLongest Bridge in China in cloudsThe longest bridge in the world exits