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12/09/2013 06:35 am ET

The Vine Bridges In Japan Will Totally Reinvent How You Think Of Bridges

Located deep in the heart of Shikoku island, the smallest of Japan's four islands, sits a series of three bridges made entirely from slats of wood and vines.

The bridges, which are believed to have been originally constructed in the 12th century, span 148-feet over the Iya-gawa river, which sits some 46 feet below.

Check them out.

iya valley bridges

Japan has designated the most popular bridge as national important folkloric property (whatever that means). It's rebuilt every three years, according to Japan's National Tourism Organization.

iya valley bridges

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