4Transfăgărășan Highway, Romania
Known for its dramatic curves and stunning mountain scenery, the Transfăgărășan Highway is both admired and feared.Â
Steep hairpin turns, sudden fog, and wildlife crossings add to the danger. While modern engineering makes it safer than many roads on this list, unpredictable weather in the Carpathian Mountains can quickly turn a scenic drive into a hazardous one.
