Fontana delle Tartarughe first water flowing to a reservoir near the present Trevi Fountain. Della Porta and the city of Rome made a plan to build eighteen new fountains connected to the new aqueduct. He began in 1572 with the fountain in Piazza del Popolo, then built the two famous fountains of Piazza Navona (1574–1578), and the fountain in Piazza della Rotonda in front of the Pantheon (1575). + In the original plan of 1570 a new fountain was to have been placed near the Theater of Marcellus in the Piazza Giudea, the site of a market in the Roman Ghetto. One of
Tourism in Italy main sights in the city include, the Trevi Fountain, Piazza Navona, Roman Forum, Castel Sant'Angelo, the Basilica of St. John Lateran, the Spanish Steps, Villa Borghese park, Piazza del Popolo, the Trastevere and the Janiculum. Milan is one of Europe's most important tourist destinations, and Italy's second; with 6.05 million international arrivals as measured in 2014, it placed itself as the 24th most visited city in the world. According to a particular source, 56% of international visitors to Milan are from Europe, whilst 44% of the city's tourists are Italian, and 56% are from abroad. The most important European Union