The Church of St. John (some researchers point to Saint John the Baptist while others indicate St. John the Evangelist) was built on the foundations of an Ealry Christian building probably from the 6th century.
The Church is a single nave edifice with an elongated rectangular ground plan with a wide semicircular apse on the East side. The interior of the side walls is divided by four lesenes, which are, interconnected and formed, on each wall, five niches vaulted with a semicircular lintel.