The ancient findings demonstrate continuous human presence from the Neolithic period until today. Ηfit for ports Pyrasos, as reported by the ancient geographerStrabo, the classical and later years wasseaportτωνHellenistic Fthiotides Thebes (which were near the villageMikrothives Magnesia). The archaeological excavations have found remains of large houses, remains of masonry, pottery from classical, την γεωμετρική έως και τη νεολιθική εποχή.

It 217 BC. the Pyrassou destroyed by the troops of the Macedonian KingΦιλίππου του Ε’, along with neighboring Fthiotides Thebes. Very fast, in the same area developed a new city. Originally named the Fthiotides Thebes. In the years of Christianity is the name Thebes which, the subheading of Thebes in Boeotia, changed toThessalikes Christian Thebes. The new town quickly developed into an important Christian center. It was burnt and destroyed half of the 7th century, at the time ofSlavic μετακινήσεων στον ελλαδικό χώρο.

Of the most important archaeological finds in the area, considered by many royal revealed by archaeological excavations, which are dated to the 5th and 6th century AD. A special feature of these structures is interesting mosaics which, thanks to the efforts of archaeologists, held today in excellent condition. The discovery of fragments of ancient wall, the length of which is estimated at 2.000 meters, enclosing scope 250.000 square meters, δείχνει το μέγεθος των Φθιώτιδων Θηβών αλλά και τη σπουδαιότητά της κατά την αρχαιότητα.

Archaeological findings[Edit]

To date

identified 10 important monuments of the ancient city:

• the acropolis of Pyrasou
• the basilica of Hope

The overgrown today low hill 'Magoyla' height 29m. was the citadel of Pyrasou. Findings, masonry remains of successive settlements and mainly ceramic utensils belonging to the Classical, in Geometric, Halki, στη Μεσοελλαδική και στη Νεολιθική εποχή.

Significant ecclesiastical buildings both public and private with rich decoration of marble sculptures ,mosaic mural and floor paved roads, aqueducts and numerous works of art dating from the 3rd to the 6th AD. During the archaeological excavations

It 1941-1953 by G. Sotiriou-Professor of Byzantine Archaeology at the University of Athens and 1959-1992 υπό τη διεύθυνση του Διευθυντού του Βυζαντινού Μουσείου Αθηνών Παύλου Λαζαρίδη ανακαλύφθηκαν πολλά και σημαντικά μνημεία που ανήκουν κυρίως στους ύστερους αιώνες της ρωμαιοκρατίας και στην παλαιοχριστιανική εποχή έως τον 7ο αιώνα μ.Χ οπότε τοποθετείται και το τέλος της πόλης.

The most important monuments have been discovered are :

• Basilica of St. Demetrios the second half of the 5th century AD, whose name came from mosaic inscription on the floor of the baptistery
• Bishop Hope Basilica of the late 5th century AD. με αρχές του 6ου αιώνα μ.Χ.
• Basilica of the Martyrdom 431 AD
• Κοιμητηριακή Βασιλική του 5ου – 6ου αιώνα μ.Χ.
• Βασιλική Ε’ του 5ου αι μ.Χ.
• Basilica of TH 5 ου αι μ.Χ.
• Τρίκλιτος ιδιόκτητος ναΐσκος του 3ου – 4ου αι μ.Χ.
• Royal on the NE point of the wall of the 5th-6th century AD
• The Group of the Kings of Bishop Peter : There are three successive royal ,the first dates back to the middle or second half of the 5th century AD. and third in the time of Justinian the First (532 A.D.) . Also revealed a number of public and private buildings , hypocausts baths and cemeteries . Ο αριθμός των μέχρι αποκαλυφθείσων Βασιλικών ανέρχεται σε δέκα πράγμα το οποίο σημαίνει ότι οι Φθιώτιδες ή χριστιανικές Θήβες ήταν ένα πολύ σημαντικό παλαιοχριστιανικό κέντρο .Οι βασιλικές περιβάλλονται από προκτίσματα σημαντική θέση στα οποία έχουν τα βαπτιστήρια .Ιδιαίτερη εντύπωση προξενούν τα εκτεταμένα ψηφιδωτά δάπεδα με τον πολύχρωμο και πλούσιο σε χρώματα και θέματά διάκοσμο τους , the extent of which exceeds 1500 τ.μ.

Apart from the large number of archaeological finds New Agchialos is important pole of attraction many tourists. The New Agchialos has a unique nature with many bays , clear waters and traditional villages with remarkable beauty. Combines mountain and sea ,serenity and nightlife , ancient and modern culture. The tourism organization of New Agchialos is at a high point , με πολυτελή και μεσαία τάξηξενοδοχεία και διασκέδαση.