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.
Vertigo-inducing walkway spans the picturesque Krasnaya Pollyanna valley in Sochi, Russia. At 1,800ft long and 650ft high it is set to be declared the world's longest pedestrian suspension bridge. It can carry 30,000 people at a time and took two years to build.