Highway 1 is a major highway in Vietnam, stretching from the northern border of the country to the southern tip. It is one of the most important roads in the country, connecting major cities and towns and providing access to many of the country's tourist attractions. Along the way, travelers can
From Wikipedia
National Route 1, also known as National Route 1A, is the trans-Vietnam highway. The route begins at km 0 at Hữu Nghị Quan Border Gate near the China-Vietnam border, runs the length of the country connecting major cities including Hanoi, Đà Nẵng, Hồ Chí Minh City, Cần Thơ, and ends at km 2482 at Năm Căn commune in Cà Mau province.