In a small oblong room, located on the south side of the forecourt of the church an Ecclesiastical Museum has been created, in which relics are displayed, which are property of the Church of Saints Constantine and Helen. In the middle of the museum a grand old Cross is located, which previously was in the temple. Unfortunately there is no description of the cross, to help establish a chronology of its construction. In the background of the museum in a space protected by a glass case, on display are Gospels, silver and bronze sacred vessels and holy icons. In the area of the glass display cabinet is the icon of St. Demetrius (Work of Theophanes Kaissareias) as well as those of Saint Mamas (Work of Arseniou). On the north and south walls of the museum, hanging are many holy icons, works from the old years. Special impression to the visitors is caused by large pictures of artist Louka who comes from Tochni and who lived in the late 16th and early 17th century.