The Church of 100 Doors (or Ekatontapyliani in Greek), is the most famous landmark of Paros, and one of the oldest and most significant early-Christian monuments in Greece. Τhe church is open every day, all day long for sightseeing and it is definitely worth visiting. You can admire the rare Byzantine icons, the Byzantine museum and the ancient remains of the temple. Through the ages, many legends have been associated with this church, like the one of Agia Theoktisti who lived and died here and whose footprint can still be seen in the interiors. The church was built in the 6th cent. AD by the Byzantine emperor Constantine.