22 Terrifying Bridges Around the World You’ll Want to Think Twice About Crossing

5. Tianmen Skywalk, China

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Clinging to Tianmen Mountain’s cliffs at nearly 4,700 feet, the glass-floored Tianmen Skywalk offers a heart-pounding view straight down. Only three feet wide, it’s a daring adventure for thrill-seekers, testing courage with every transparent step suspended in the sky.