The church of San Claudio al Chienti is a Romanesque building located in the municipality of Corridonia (Macerata), in an isolated position in the Chienti valley.
Documented since the 11th century, it is one of the most important and ancient examples of Romanesque architecture in the Marche region, still intact in its original conformation.
The church has numerous typological peculiarities, such as the Greek cross plan, semicircular apses along the perimeter and two cylindrical towers. The building also has two floors with a lower and an upper church.
The access staircase with a gallery and the entrance portal of the upper church, made of Istrian stone, were added in the 13th century.
