Brief synthesisThe Ancient city of Nessebar is a unique example of a synthesis of the centuries-old human activities in the sphere of culture; it is a location where numerous civilizations have left tangible traces in single homogeneous whole, which harmoniously fit in with nature. Criterion (iii): The Ancient City of Nessebar is an outstanding testimony of multilayered cultural and historical heritage. Nessebar has demonstrated its historical importance as a frontier city on numerous occasions. Criterion (iv): The Ancient City of Nessebar is a unique example of an architectural ensemble with preserved Bulgarian Renaissance structure, and forms a harmonious homogenous entity with the outstanding natural configuration of the rocky peninsular, linked with the continent by a long narrow stretch of land. Protection and management requirementsManagement is implemented by virtue of:1) Cultural Heritage Law (Official Gazette No.19 of 2009) and subdelegated legislation.