At the Trevi Fountain in Rome, it is traditional to throw a coin backwards over your shoulder into the water. But soon tourists could lose coins in a very modern way when entering the fountain, as the Italian capital is considering charging an entrance free. “Our idea is to introduce a €2 ($2.20) ticket to enter the area around the fountain’s water basin,” the Roman city councillor responsible for tourism, Alessandro Onorato, announced on Monday on social media. Rome, like many other cities in Italy, is struggling with mass tourism. This summer, tourism in the city hit record figures. Venice h…