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.
Highway M03 (Ukraine)
Highway M03 is a Ukrainian international highway (M-highway) connecting Kiev with Dovzhansky on the border with Russia, where it continues into Russia as the A270. It is part of European route E40 from Kiev to Debaltseve at which it is part of European route E50 to the border with Russia. At , the M03 is the longest international state highway in Ukraine.