A calendar, which according to Suetonius was set up by the grammarian Marcus Verrius Flaccus in the imperial forum of Praeneste (at the Madonna dell'Aquila), was discovered in 1771 in the ruins of the church of Saint Agapitus, where it had been used as building material.
Pogled objame Monte Soratte, Rim, hribovje Alban in Pontinianovo ravnico do morja.