Alghero is a great base for exploring one of Italy’s most beautiful islands (Picture: Getty Images) When you think of Italy, your mind likely wanders to Rome, Venice, or Florence. While all are beautiful, many are struggling with overtourism. To combat soaring visitor numbers, Rome has introduced a €2 entry fee for the Trevi Fountain. Venice has doubled its tourist tax, while Florence has cracked down on short-term holiday rentals in the histori…