Pan-American Highway

The Pan-American Highway is a network of roads spanning approximately 30,000 kilometres across the Americas, from Prudhoe Bay, Alaska to the southern cities of Puerto Montt and Quellón in Chile, and Ushuaia in Argentina, except for a 100km break in the Darién Gap between Colombia and Panama. The highway was built in stages, with the first stage connecting Laredo, Texas to Mexico City, and subsequent stages extending through Central America to Panama City. The highway has not been completed, with the Darién Gap remaining a major obstacle due to opposition from Panama and environmentalists.learn more on wikipedia