In the parish of Villayana, within the municipality of Lena, stands the Church of San Martino, a temple that holds within its walls centuries of history and devotion. Located near a branch of the old Roman road of La Carisa, this church was built in the 13th century, although there is evidence suggesting the existence of an earlier pre-Romanesque building on the same site, of which no visible remains remain.   The first documented reference to San Martino dates back to 905, when King Alfonso III donated the church to the Cathedral of San Salvador in Oviedo. This act reflects the religious and strategic importance of the area at that time.   Architecturally, the church has a single nave culminating in a semicircular apse preceded by a straight bay. Over the centuries, it has undergone various modifications, the most significant being the 19th century, when two side chapels, two sacristies, and a bell gable were added. The main portal is a semicircular arch with two undecorated spires, and the eaves rest on six corbels with a central metope.   Recognizing its historical and artistic value, the Church of San Martino was declared a Site of Cultural Interest in 1982. This recognition underscores the importance of preserving this heritage, which is not only a testament to medieval religious architecture but also a symbol of Lena's cultural identity.