I have often visited the Isola Tiberina when in Rome (figs. 1,2). This tiny island is located in the middle of the Tiber River (fig. 3), across the Trastevere rione and the old Jewish Ghetto, east of St. Peter Basilica and the Vatican. It is connected by the Fabricio Bridge (fig. 4), the oldest remaining roman Bridge built in 62 BC, and the Cestio Bridge.