Tourism in Rome (with around 4 million tourists a year, making it the world's 39th most popular tourist destination). Other popular sites include St Peter's Basilica, the Forum Romanum, the Pantheon, the Trevi Fountain, the Spanish Steps, Via Condotti, Via Veneto, the Capitoline Museums, the Villa Borghese gardens, the Villa Giulia, Piazza Navona, the Basilica di Santa Maria Maggiore, the Basilica of St. John Lateran, the Piazza del Popolo, the Castel Sant'Angelo, the Campo de' Fiori, the Quirinal Palace, the Lateran Palace and the Palazzo Barberini, to name a few. Rome can be divided into several districts. The so-called historical center ("centro storico")
Fountain in Piazza Santa Maria in Trastevere end of the 17th century, the architect Carlo Fontana replaced Bernini's seashells with his own sculpted seashells. The fountain was completely rebuilt in 1873, following the design of Bernini and Fontana, but using less expensive materials. In that occasion, the main pool was rebuilt with bardiglio marble and an imposing S.P.Q.R. sign has been placed on the external side of the shells. It was rebuilt once again in 1930. The last maintenance has been made in 1984. Fountain in Piazza Santa Maria in Trastevere The Fountain in Piazza Santa Maria in Trastevere is a fountain located in the square in