Pan-American Highway
The Pan-American Highway is a network of roads stretching across the American continents and measuring about in total length. Except for a rainforest break of approximately , called the Darién Gap, the roads link almost all of the Pacific coastal 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 with conventional highway vehicles. Without an all-terrain vehicle, it is necessary to circumnavigate this terrestrial stretch by sea.
Col de Tende Road Tunnel
Col de Tende Road Tunnel is a 3182 metre long road tunnel running under Col de Tende between France and Italy. It was inaugurated in 1882 and it was until 1964 the longest road tunnel in the Alps. At its opening time it was the world's longest road tunnel. Altitude on the French side: 1,280 m ; Italian side: 1,321 m.