Ancient Thira (Thera) is an ancient city, situated on a steep rocky headland of Mesa Vouno, at an altitude of 396 m above sea level. The name of the city was named after the mythical ruler of the island of Tiras and was inhabited by the Dorians since the 9th century BC and existed until 726 ad

Ruins of an ancient city were discovered in 1895 by the German archaeologist Friedrich von Hiller. Systematic excavations were carried out here until 1904 and discovered the majority of residential houses and cemeteries of ancient Thira. Again, excavations were resumed under the auspices of the Archaeological society of Athens in the period between 1961 and 1982. Then on the slopes of Sellada was discovered an ancient necropolis.

A large part of the ruins of the ancient city dates back to the Hellenistic era, but there are also the remains of Roman and Byzantine buildings. Of the most important architectural monuments discovered during the excavations, it is necessary to highlight the ancient Agora, which was located almost in the center of the city. Here were concentrated the temples and public buildings. In the South-Western part of the Agora is the Royal gallery in the Doric style, built during the reign of Julius Caesar (1st century n.e.). Impressive and the temple of Artemis, carved in a rock (late 4th - early 3rd century BC.e.). On a rock inscribed with various inscriptions and symbols of the gods (the eagle of Zeus, of Apollo and lion dolphins of Poseidon). Also on the territory of the ancient city have been discovered, the temple of Dionysius (3rd century BC.e.and the sanctuary of Apollo (6th century BC.e.). Of special interest is the ancient theatre, built during the Ptolemaic times (3rd century BC.e.). Originally the theatre had an orchestra pit, which, during the reconstruction in the 1st century n.e.was increased stage. Remarkable and such ancient structures as the Roman baths, Byzantine walls, the Church of St. Stephen's Cathedral (built on the ruins of the early Christian Church of St. Michael the Archangel) and the Ancient necropolis.

Archaeological excavations of the ancient settlement was of great historical significance. In addition to the beautiful architectural structures, they also discovered many valuable artifacts that illustrate the life of the ancient city in its different aspects. Today the territory of Ancient Thira is open for visits. After examining architectural attractions, you can also enjoy beautiful panoramic views from the cliff top.