The Largest Highway In The World. Spanning over 19,000 miles or 32,000 kilometres, this massive road stretches across two continents, connecting dozens of countries and passing through some of the most diverse and stunning landscapes on the planet. Stay tuned as we take a look at the longest highway in the world.
The highway in question is the Pan-American Highway, also known as the Panamericana or the Interamerican Highway. It begins all the way up in Prudhoe Bay, Alaska, and stretches all the way down to Ushuaia, Argentina. Along the way, it passes through Canada, the United States, Mexico, Central America, and South America. It is also known as the world's longest "motorable road," mean...