Two conjoined cave-churches, with crypts built into the rock containing frescoes dating back to the 12th-century. Part built-up, part built-into rock the churches are remarkable.
The rocky outcrop overlooking the Sasso Caveoso is one of the most famous views of Matera. It is pierced by two Rupestrian churches that communicate with each other through a gallery. You go into the church of Santa Maria de Idris, which dates back to the 14th-century and has several frescoes, including a Conversion of Saint Eustace, the patron saint of Matera. The church of San Giovanni in Monterrone is older and its frescoes date from the 12th to the 14th century.