The world's longest road is the Pan-American Highway, which spans approximately 48,000 kilometers (30,000 miles) from Prudhoe Bay, Alaska, USA to Ushuaia, Argentina.
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Pan-American Highway
However, it's not a single, continuous road, but rather a network of roads and highways that are connected to form a continuous route.
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Pan-American Highway passes through 14 countries
The United States, Canada, Mexico, Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Ecuador, Peru, and Chile, before reaching Argentina.
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Pan-American Highway
It's worth noting that the Pan-American Highway is the longest road in terms of distance.
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About Pan-American Highway
The longest continuous road without interruptions or breaks is the Australian Highway 1.
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The distance
This stretches for approximately 14,500 kilometers (9,000 miles) around the continent of Australia.