Benedictine monks built this abbey on a hilltop above the Adriatic in the early 1200s, choosing a site that had already carried a sixth-century church and, before that, a temple to Venus, a lineage the abbey's name still commemorates.
The Cistercian-style basilica, with its nave and two aisles, sits over a crypt supported by mismatched Roman columns salvaged from earlier buildings, and thirteenth-century frescoes line the apses above. Declared a national monument in 1881, the complex fell into disrepair before restoration began in the 1950s. A Passionist community has cared for the abbey since 1954, and Sunday Mass continues in the church, so tourist visits to the nave may pause around service times.





