Tourist attraction Tren a las Nubes, Train to the Clouds, on the Polvorillo Viaduct, in the High Andes, near Salta, borderland Argentina - Bolivia, South America

america american american andes area areas argentina attraction backdrop backdrops bolivia borderland chain chains clouds countryside day daylight daytime during exterior exteriors high in landscape landscapes las mountain mountained mountainous mountains nature near nobody nubes on outdoor polvorillo rail railroad railroads railway railways range ranges rangy region regions route routes salta sceneries scenery scenic section sections south south the to tourism tourist touristic touristical touristically touristy traffic train train trains tren viaduct