The Tower of Agia is a tower that was probably built in the 17th century on the northern coast of Naxos, at an altitude of about 200 meters above sea level, offering a panoramic view. It is one of the few towers on Naxos located close to the sea. The tower is situated approximately 6 kilometers north of Naxos Town (Chora), near the Monastery of Agia and the village of Agia Komiaki. The tower likely belonged to the Kokkos family and was later acquired by the Spanous and the Pararas families. The tower was damaged by fire in 1992.

The tower measures approximately 12 by 7.7 meters. Near the tower is an olive press, which, although it has no roof, still retains part of its equipment, as well as several ruined buildings such as warehouses, stables, and others. The tower itself is simple, with no decorative elements. Its flat roof is surrounded by a 30-centimeter-high parapet made of the same materials as the rest of the structure, featuring loopholes shaped like swallowtails.
The interior of the tower was accessed through a door on the southern side of the first floor, reachable by an external staircase. Inside, the stairs are made of stone, and access to the roof was provided by a movable wooden ladder.
The tower was declared a historic preserved monument in 1983, along with other medieval towers of Naxos, as these are imposing structures of great architectural and morphological interest, deeply connected with the island’s history. Together with the tower, the nearby chapel and medieval buildings located within 100 meters were also designated as monuments. A protection zone with a radius of 500 meters has been established around the tower.