CNN
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Set atop a hill on the Italian island of Sicily, Agrigento is a heritage tourist’s paradise. Beneath the archaeological structures and relics of its Valley of the Temples lies an ancient maze-like aqueduct system that still captures water today.

But the aqueduct, and others built in modern times, are running so dry that small hotels and guesthouses in the city and nearby coast are being forced to turn tourists away. They don’t have enough water to guarantee their guests a toilet that flushes or a shower after a day out in the summer heat.

Sicily began enforcing water restrictions in February when the…