Sibyl's Cave Museum (Montemonaco)

History of the Sibyl's Cave Museum in Montemonaco

The museum was created to tell a legend centered on a cave just below a bare, smooth summit now called Monte Sibilla. According to the tale, a narrow passage led to two huge metal doors that slammed menacingly. They were the doors to the realm of the Sibyl, a woman with powers of divination, a fairy and enchantress to some, a demonic creature to others. Explorers and the curious tried to pass through them and, when they came back, brought enigmatic accounts. Then the entrance was blocked, and today access to those depths is closed forever.

The museum was established in 2009, in agreement between the Comune di Montemonaco and the Sibillini National Park authority in the Sibillini Mountains, and was expanded and renovated in 2012. It occupies a building made of two connected sections. The first, the original one, has load-bearing walls of rough-hewn stone. The second has reinforced concrete beams and pillars.

Montemonaco is among the villages most damaged by the 2016-2017 earthquakes. In January 2025 the regional conference approved the repair project for the museum, worth one million euros. The project provides for seismic improvement of the building, with replacement of the lintels, reinforced plaster and an anti-overturning system. Finishing work, work on the building systems and energy efficiency upgrades are also planned.

What to see in the Sibyl's Cave Museum

The route is divided into sections, each with artistic, historical and cultural evidence from the whole municipality of Montemonaco. Old books and parchments show how closely the local landscape and town layout are tied to the literary and legendary tradition. Before the closure, multimedia technology guided visitors among characters, places and visions, including the inner journey of the Guerin Meschino.

The best-known piece is the Gran Pietra, taken from Lago di Pilato. Its surface bears carved letters with the names of three knights from Spoleto who visited the lake around 1500. According to tradition, in ancient times the lake drew necromancers, magicians and sorcerers. The study of the marks on the stone is still under way.

The museum also displayed photographs of the 20th-century excavations in the cave on Monte Sibilla. A series of images showed the Sibyl in church frescoes. The visit ended with a reconstruction of the descent into the cave, through a tunnel.

The listed services included a library, a bookshop, a photo library, an audio and video screening room and a space for educational activities. After the restoration the layout may change.

Visiting the Sibyl's Cave Museum

For now the museum cannot be visited, because it is closed for restoration work. Contact details are in the information box on this page. It is best to check whether it has reopened before traveling.

In past years the museum opened seasonally, mainly in the summer months and on weekends in early fall. Visits by appointment were available for groups and schools. The museum also offered guided tours and educational activities for classes, which ended with a short theater activity on the characters of the myth.

The building has ramps for people with disabilities, and it was accessible to everyone.

Where the Sibyl's Cave Museum is located

The museum is in Montemonaco, in the historic center, in the Villa Curi building. The village stands on the slopes of the Sibillini Mountains, in the Marche region, in the province of Ascoli Piceno.

The actual cave is another matter. It lies at about 2,150 m above sea level, near the summit, also in the municipality of Montemonaco, and can be reached only on foot. The museum makes it possible to learn its story without making the climb.

Around the Sibyl's Cave Museum in Montemonaco

The museum tells the story of two places that are the natural continuation of the visit: Monte Sibilla and Lago di Pilato. The lake is a body of water of glacial origin, enclosed in a narrow valley north of the massif's main peak. It is in the Marche, less than a kilometer from the border with Umbria, near the municipalities of Arquata del Tronto and Montegallo. In the late Middle Ages it was frequented by alchemists, magicians and witches from all over Europe.

To extend the tour to other museums in the area, the list is on the page about museums in the Sibillini Mountains.