DOT (graph description language) DOT is a plain text graph description language. DOT graphs are typically files with the file extension gv or dot. The extension gv is preferred to avoid confusion with the extension dot used by early (pre-2007) versions of Microsoft Word. Various programs can process DOT files.
The Lake Pontchartrain Causeway, or the Causeway, consists of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is 23.83 miles (38.35 km) long. It is the longest bridge in the world that runs continuously over water.
1. Danyang Kunshan Grand Bridge â 164,800 meters. The Danyang Kunshan Grand Bridge is, by far, the longest bridge in the world. Its length difference to the second longest bridge in the world is enough to make it the fifth longest bridge in the world. It is a viaduct completed in 2010 to serve train traffic.