22 World’s Most Treacherous Bridges You’d Think Twice Before Crossing

6. Ponte Iya Kazurabashi, Japan

In the Iya Valley, the Kazurabashi Bridge is crafted from mountain vines, echoing ancient Japanese traditions. Crossing it feels like stepping into the past, with creaking vines and swaying planks highlighting its fragile nature. Steel cables are intertwined every three years, but the crossing remains exhilarating and unnerving, especially as you glimpse the river below through gaps.