Discover the hidden secrets beneath the streets of Rome on an underground tour of the Santa Cecilia and San Crisogono churches. Meet your guide by the Boario Forum, and learn about the history of the Temple of Ercole (Temple of Hercules) and the Temple of Portunos that gave the site great importance. Cross the Palatino Bridge to see the Ponte Rotto (Broken Bridge)which was commissioned by Marco Emilio Lepido in 179 AC, although some traces indicate that the bridge was already partly built by 241 AC. Continue to Tiber Island and enjoy some breathtaking views as you continue to the church of Santa Cecilia in Trastevere. It is said that the church was built on top of the home of St. Cecilia, a noble virgin of an important family of the Roman Republic and martyr. Explore the tomb of St. Cecilia and the crypt covered in beautiful mosaics and paintings. Continue to the small street of the Trastevere district to the church of St. Crisogono, dedicated to the martyr Saint Chrysogonus. Explore the 8th century frescoes and the restored underground corridors and wall paintings.