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The Pan-American Highway: The World's Longest Road

Published January 23, 2026, 08:21
The Pan-American Highway: The World's Longest Road

The Pan-American Highway, approximately 30,000 kilometers long, is the world's longest road, traversing 14 countries and two continents. Starting in Alaska and ending in Ushuaia, Argentina, it offers travelers a unique experience, passing through deserts, jungles, mountains, and cities. The highway is not a continuous road but a sequence of roads with varying characteristics. Some sections are modern highways, while others are narrow roads passing through settlements. The journey requires preparation and endurance, as driving the entire length can take from two to twelve months, depending on the pace and stops. The construction of the highway began in the 1930s and continued until the 1970s, with each country undertaking the construction and upgrading of its own sections. Despite improvements, some sections remain challenging, such as the mountain passes and dirt roads in South America. A significant point is the 'Darién Gap,' a roughly 100-kilometer stretch between Panama and Colombia that remains unpaved due to the dense jungle, swamps, and the need to protect indigenous populations. Despite this gap, the Pan-American Highway remains an iconic project and a challenge for travel enthusiasts.