The Ecclesiastical Museum of the Holy Metropolis of Alexandroupolis is housed in "Leontarideio Urban School Boys" in the courtyard of the Metropolitan Church of St. Nicholas.
The museum was founded in 1975 by the Bishop of Alexandroupolis and Thessaloniki now Messrs. Anthimos.
Originally housed in two halls of the Cultural Center of the Metropolis, alongside the cathedral of St. Nicholas.
In 1982 the collection, enriched in the meantime and other relics transferred to Leontarideio School, a listed monument since 1978.
The halls of the museum house the religious history of the area and you can admire Byzantine sculptures, temples, vestments, and utensils very old ecclesiastical books.