Driving Roads / Transfagarasan

Romania's DN7C runs about 90 km from Bascov to the Sibiu side and climbs to about 6,699 feet near Balea Lake through dramatic switchbacks between the country's highest peaks. It runs about 56 miles along DN7C in Romania. Drive time: about 3 h 20 min one way.
Best time to go: Late June or July to October. The high section is usually closed from late October until late June for snow, and can close in summer in bad weather.

Sources: Length · High point · Best time. Drive time is the route time for the mapped route without stops, from Mapbox.
Record the alpine switchback section and keep the crossing in your drive log. The seasonal, twisty climb rewards smoothness over speed.
Open only in warmer months with sheer drops and tunnels; keep speeds low on the hairpins and watch for fog, wildlife and parked sightseers.
Open Road keeps every drive: the route on a map, the time and the distance. On iPhone and Android.