2. Millau Viaduct, France
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Soaring above the Tarn River valley, the Millau Viaduct is the world’s tallest bridge at 1,125 feet. Its towering pylons seem to pierce the clouds. The view is breathtaking, but for those fearing heights, crossing it is nerve-wracking. Gliding high above the landscape with only a thin road below and open skies around is both thrilling and daunting.
