The capital of the island is situated in the municipality of Ibiza with its impressive walled centre which was named World Heritage Site by UNESCO in 1999. This international distinction recognizes the historical, cultural and architectural importance of the best- preserved coastal fortress in the Mediterranean. The acropolis of Dalt Vila is full of narrow streets and monuments such as the castle or the cathedral. It has been a crossroads for different cultures for hundreds of years, nowadays the surroun- dings of the fortress are the stage for concerts, poetry events, exhibitions and cultural activities throughout the entire year.
The Phoenician remains of Sa Caleta (in Sant Josep) and the Phoenician-Punic cemetery of Puig des Molins (in Ibiza) also form part of the assets declared as World Heritage Site since UNESCO considers that “they are exceptional evidence of urbanization and social life in the Phoenician colonies of the western Mediterranean They constitute a unique resource, in terms of volume and impor- tance, of material from the Phoenician and Carthaginian tombs“, according to the official document of the declaration. The committee of UNESCO defines Ibiza as a privileged setting due to its biodiversity and its natural values taking into account the wealth of its oceanic Posidonia meadows (plants found on the sea beds) that are the best preserved in the Mediterranean and are situated in a Nature Reserve. These meadows give shelter to over 220 different species among which three are under the threat of extinction worldwide, such as the monk seal, and are responsible for the purity and transparency of the waters that surround the island. As much for its cultural criteria as for its natural values, UNESCO chose Ibiza as one of the places to be preserved for future gene- rations.