Magnificent papal basilica dating from the 4th century, with tomb of St Paul & elegant cloisters. Destroyed by fire in 1823, it was rebuilt and reconsecrated in 1854. Portraits of all the popes line the nave.
Officially Church of St Paul at the Martyrdom, this church is located within a Cistercian (strict observance) abbey. The name "Tre Fontane" refers to the three fountains the church is built over. Tradition says that this is the spot where St. Paul was beheaded. His head bounced three times. Each place it bounced, a fountain sprang up. Note that there are three churches at this monastery. The church of Tre Fontane is the one furthest back.