San Zeno de l'Oselet church

San Zeno de l'Oselet is a place of worship in Castelletto built in the Romanesque style with elements spanning from the High Middle Ages to the Gothic period. The interior is divided by six curved arches carried by columns topped with capitals of Roman origin.

Construction of this place of worship took place in multiple phases between the 11th and 13th centuries and first appeared in written records in a papal document from 1159. The work extended over two centuries with each phase bringing visible changes to the structure.

The interior walls feature frescoes from the late medieval period with Byzantine influences depicting scenes from the life of John the Baptist. This artistic decoration still gives visitors today an insight into the religious imagery of that era.

The building is accessible during regular hours and sits near several hiking trails connecting to other points of interest in the surrounding region. This location makes it easy to combine a visit with activities in the surrounding countryside.

The roof of the building displays a distinctive slope that resulted from the addition of a bell tower during renovation work in the 13th century. This architectural feature still today reflects the medieval expansion work done back then.