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.
U.S. Route 98 in Florida
U.S. Route 98 (US 98) is an east-west United States highway that runs from the Alabama-Florida state line to southern Florida. It is the longest US road in Florida. It was established in 1933 as a route between Pensacola and Apalachicola, and has since been extended eastward across the Florida Peninsula and westward into Mississippi. It runs along much of the Gulf Coast between Mobile, Alabama and Crystal River, Florida, including extensive sections closely following the coast eastward from the Alabama-Florida state line to St. Marks. At a length of 671 miles, US 98 is the longest numbered route in the state of Florida.