Location and site:
Nessebar (formerly Mesambria of the Thracians then Messembria of the Greeks) is confined to a rocky promontory of a peninsula on the Bulgarian coast at the edge of the Black Sea.
Urban Morphology:
The vestiges of a Greek fortification, with their towers of dressed limestone dating to the 6th century B.C., are found at the entrance of a natural defense site, which is 800 m. x 300 m. in area and possesses small squares and narrow, sinuous streets. The city's wooden vernacular architecture, which is enriched by dressed stone elements and decorated with ceramics, dates to the Bulgarian Renaissance of the 18th and 19th centuries. It creates a harmonious ensemble with Nessebar's older monuments, including churches and chapels constructed during the Byzantine et Bulgarian Medieval era; these are clad in comfortable combinations of brick and stone.
Registration Criteria:
The Old City of Nessebar "bears testimony to several civilizations which have disappeared. (III) It "has illustrated, on several occasions, the significant historic position of a frontier city on the outposts of a threatened empire." (IV)