The Kallergi Monastery is a monastery complex dedicated to St. John the Baptist, while the surrounding area is mountainous and barren. Although the exact date of its construction is not known, it seems that it was founded during the Venetian period. It is speculated that the site where it was built was a feud of Callergi.
During a period of tension, because of religious conflicts, the monastery hosted the Byzantine scholar and theologian Joseph Vryennios (1380-1400), to whom the area has been related. Since the early 20th century, the monastery has undergone several restorations, and since 1998 the restoration work has been continuing by the “Friends of the KalergisMonastery”.