Tios Ancient City Tios, also referred to as Tieion, was an ancient Ionian settlement located along the western shores of the Black Sea in today’s Zonguldak province. The city was established around 700 BC by settlers from Miletus. Throughout its long history, Tios came under the control of various powers, including the Persians, Romans, Genoese merchants, and eventually the Turks. Although Tios boasts a rich and ancient past, only limited archaeological data is available. Several visible remains—such as seaside fortification walls, an aqueduct, a theatre, a watchtower, and remnants of the harbor and its breakwaters—all date back to the Roman era. The acropolis of Tios lies to the northeast of Filyos, perched on a hill with a commanding view of the village. While the defensive walls still exist, only their base structures are visible today, and further archaeological work is needed to determine their original design. Within the acropolis, a partly ruined stone structure from an earlier civilization still stands. Additionally, a Roman-era theatre can be seen near the entrance of Filyos along the main highway. Built into a gentle slope, the amphitheatre was constructed using stones sourced directly from the surrounding area. Much of the original stonework was later reused in other local buildings, although part of the structure remains intact. Another ruin, believed to have had a military or defensive purpose, stands approximately 100 meters west of the theatre and roughly 200 meters from the town’s edge. Today, visitors can find numerous historical remnants across the region, including a fortress, an open-air theatre, an underground complex, aqueduct remains, and an ancient dock. If you have any questions or would like more information about the Tios Ancient City, please feel free to contact us at [email protected] or simply reach out to us on WhatsApp. We will get back to you promptly.