Historical chapel near Asopos River. It is sacred to Saint Thomas, genius Loci of the village. Tradition wants the Saint to protect the villagers  from the bubonic plague that had spread  the district. So they honored him by giving his name to the village. In Greek: Ayios Thomas. According to Leiden University research, the chapel is considered mid Byzantine (12 century). the cupola is posterior. Ancient Tanagra lies opposite to the chapel.

According to Schachter McGill, the chapel is considered first christian basilica of the 10th century. By the time Byzantine Empire reconquered Boeotia from slaves, starts a period of steady growth of rural population. The small hamlets take the role of ancient Tanagra. During crusades the district pases under the commandership of a Frank lord who converts the chapel into feudal chateau. (13th century).
Celebration at Sunday after Greek Orthodox Easter.

External view of the chapel. You can see the entrance and the template on the left, that helped the archaeologists to discover the position of the ancient town of Tanagra.

The template on the wall, on the left of the entrance.

The well spring outside of the surrounding fence.

Icons from the left side of the temple. From the left: Saint Theodoros and the touch of the Tomas.

Icons from the right side of the temple. From the left: Christ, Saint John the Baptist and Saint Nikolaos.