Stretching across two continents and nearly the full length of the Western Hemisphere, the Pan-American Highway is one of the longest roads ever constructed. It connects 14 countries on a scale that few other travel networks can match, earning it a spot in the Guinness World Records as the world's longest drivable road. However, contrary to its name, the Pan-American Highway isn't a single, unbroken stretch of asphalt. Rather, it's an immense network of national highways pieced together over