Title: 25 Most Terrifying Roads in the World to Conquer
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18. Guoliang Tunnel - China
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Guoliang Tunnel, carved by villagers using hammers and chisels, is a marvel of human determination. With a width of four meters and a height of five meters, it attracts tourists and hikers alike. It's a journey through history and ingenuity, where every step is a testament to perseverance.
