Heraclea Sintica is an ancient city located in present-day Bulgaria, near the town of Petrich. Founded in the 4th century BC, it was established by the Thracians and later became a significant center during the Roman Empire. The site features well-preserved ruins, including a theater, basilica, and various public buildings. The city was named after the mythological hero Heracles, reflecting its cultural significance. Excavations have revealed numerous artifacts, including pottery and inscriptions, which provide insights into the daily life and customs of its inhabitants. Today, Heraclea Sintica is an important archaeological site attracting researchers and tourists alike.