The first thing you see as the ship enters Naxos' port, is Portara. It is built on the small island Palatia and is the gate of the ancient Apollo Temple, which was never completed.
Portara was built in the middle of the 6th BC, when tyrant Lygdame ruled the island.
The island, which is called Palatia by the locals, is connected to the tragical myth of Ariadne. According to mythology, Thesseus abandoned Ariadne in the island. It was then that Dionysos saw her and married her. There is another scenario according to which Ariadne was drawn into sea.