The church of Agios Mamas is a 10th century chapel located on the island of Naxos and is believed to be the oldest standing christian structure on the island. Originally consecrated as a Greek Orthodox cathedral, the structure was converted into a Catholic church by 1207 CE. The building was dedicated to Agios Mamas, an important saint for local people who is considered to be the protector of shepherds. The site structure is cruciform in shape and features several noteworthy sculptures and frescoes inside. Due to safety considerations and planned restoration the site is currently closed to the public.  