3The Transfagarasan Highway, Romania

Route: Sibiu – Balea Lake – Vidraru Dam – Curtea de Argeș Distance: 90 km (56 miles) Best Time to Go: July to October

Dubbed “the best road in the world” by Top Gear, the Transfagarasan Highway winds through the Carpathian Mountains, featuring hairpin bends, tunnels, and stunning alpine scenery. Make sure to stop at Balea Lake and Poenari Castle, known as Dracula’s real castle.