Switzerland's gravity-defying solution
Switzerland's 15th-Century farmers and vintners had a dangerously creative solution to irrigating their mountainous land that's still in use today.
Continue Reading https://www.bbc.comSwitzerland's 15th-Century farmers and vintners had a dangerously creative solution to irrigating their mountainous land that's still in use today.
Continue Reading https://www.bbc.com
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