The Transfăgărășan or DN7C, also known as Ceaușescu's Folly, is a paved mountain road crossing the southern section of the Carpathian Mountains of Romania.
It has national-road ranking and is the second-highest paved road in the country after the Transalpina.
It starts near the village of Bascov, near Pitești, and stretches 90 km (56 mi) to the crossroad between the DN1 and Sibiu, between the highest peaks in the country, Moldoveanu and Negoiu.
It connects the historic regions of Transylvania and Wallachia.
It was constructed between 1970 and 1974 during the rule of Nicolae Ceaușescu, as a response to the 1968 invasion of Czechoslovakia by the Soviet Union.
Ceaușescu wanted to ensure quick military access across the mountains in case of a Soviet invasion.
Reference: Wikipedia