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.
Those are impressive numbers, but if you donât require bridges to be needed to navigate over bodies of water, then the longest bridge in the world might be the Dayang-Kunshan Grand Bridge in China. Part of a high-speed railway system, that bridge stretches for 104.2 miles and provides train transport between Shanghai and Nanjing.