Nessebar, a UNESCO World Heritage site in Bulgaria, is an ancient coastal town celebrated for its rich history spanning over 3,000 years. Known as the 'Pearl of the Black Sea,' it boasts a remarkable blend of Thracian, Greek, Roman, Byzantine, and medieval Bulgarian architecture, including well-preserved churches adorned with frescoes. Recognized for its cultural and historical significance, it stands as a living testament to the region’s diverse civilizations.