Matera is famous for its ancient cave churches, many of which have been carved directly into the rocky hillsides. Here are a few of the most interesting cave churches to visit in Matera:

Santa Maria di Idris: This is one of the most impressive cave churches in Matera, with a stunning interior that is decorated with frescoes and other works of art. The church is located in the Sassi di Matera, and is built directly into the rocky hillside.

Santa Lucia alle Malve: This cave church is located in the heart of the Sassi di Matera, and is notable for its beautiful frescoes and intricate stone carvings. The church is named after Saint Lucy, and was built in the 8th century.

San Pietro Barisano: This cave church is located in the Sassi di Matera, and is one of the largest and most impressive in the city. The church is built directly into the rocky hillside, and is decorated with beautiful frescoes and other works of art.

Visiting these cave churches is a unique and unforgettable experience, as they offer a glimpse into the rich history and culture of Matera. Exploring their intricate interiors and admiring their beautiful artwork is a must-do activity for anyone visiting the city.