The Hải Vân Pass in Vietnam is a 21-kilometer mountain pass known for its stunning views and challenging road conditions. It cuts through the Annamite Range, separating the cities of Huế and Đà Nẵng. Historically, it marked the boundary between the kingdoms of Champa and Đại Việt. The pass has been featured on shows like Top Gear for its scenic beauty and winding roads. Despite its beauty, the pass has also seen accidents, making it both breathtaking and treacherous for travelers.