It is set in a strategic position on a tufa­ceous cliff that overlooks the Suppentonia valley. The relics of patron saints St. Anastasius and St. Nonnoso are kept in the parish church. At the Franciscan convent of San Michele Arcangelo (Michaelites), you can descend through a passage with 144 steps carved into the rock - which took the hermit Rodio fourteen years to finish and was done at the end of the eighteenth century - to the Sanctuary of Maria Santissima ad Rupes (a pilgrim destina­tion) in which the image of Our Lady, a six­teenth-century painting, is venerated. In an adjacent room, there is a collection of sa­cred paraments dating from the twelfth to the sixteenth century, including a precious box in wood and metal foil dating to the thirteenth century.

A country path (the "strada dei Santi" or "road of the saints") leads to the bottom of the valley, where the basilica of Sant'Elia is located, one of the most beautiful ones in the entire region. It was built in the eighth century over an existing Benedictine struc­ture that was reconstructed in the eleventh century and restored in the nineteenth century. Lombard architectural motifs are applied to the traditional layout of the early Christian basilicas. The simple facade with three portals presents elegant decorations in the lateral lunettes. The interior, with, nave and two aisles, has a trussed roof and is divided by columns topped by richly decorated capitals from ancient buildings. In the nave and the transept, you cani admire the remains of the Cosmati-work floor. Also worthy of note is the pulpit dating to the pontificate of Gregory IV and recomposed during the twelfth century with the remains of presbyterial fencing from the eighth-ninth century. There is an elegant ciborium on the main altar. The apse and transepts present memorable frescoes in the Byzantine style, dating to the end of the eleventh century and attributed to the Roman brothers Giovanni and Stefano and their nephew Nicolò.

In the basin: Christ with the apostles Peter and Paul and the prophet Elias; in the middle: twelve lambs symbolising the apostles; on the bottom: The archangels and the saints; in the transept: The beard­ed old men of the Apocalypse, scenes of The death and funeral of St. Anastasius and scenes from St. John s Apocalypse.