In 1983 Nessebur was put on the UNESCO List of World Cultural Monuments. Systematic archaeological studies, reinforcement, restoration and conservation have preserved the material traces of history more than anywhere else. You feel as if you are on the borderline with another world. The small peninsula is a meeting place of bygone times. The millennia of uninterrupted human occupation (the earliest traces of human settlement date back to over 3000 years ago) have produced an impressive cultural layer which is as thick as 6 meters in some places.