Today the city has a vast and diversified system of metropolitan trains, integrated with buses and subway. Recently it was also inaugurated in the city a Light Rail System called VLT, a small electrical trams at low speed, while São Paulo inaugurated its monorail, the first of South America. In Brazil, an express bus system called Bus Rapid Transit (BRT), which operates in several cities, has also been developed. Mi Teleférico, also known as Teleférico La Paz–El Alto (La Paz–El Alto Cable Car), is an aerial cable car urban transit system serving the La Paz–El Alto metropolitan area in Bolivia. See also Flags of South America List of World Heritage Sites in South America South American Games Notes References Citations Sources External links South America's Ancient Civilisations at the National Geographic Society The Columbia Gazetteer of the World Online Columbia University Press Continents