The Pan-American Highway (, , ) is a network of roads measuring about in total length. Except for a rainforest break of approximately , called the Darién Gap, the road links almost all of the mainland countries of the Americas in a connected highway system. According to Guinness World Records, the Pan-American Highway is the world's longest "motorable road". However, because of the Darién Gap, it is not possible to cross between South America and Central America.