Ibiza is the center of entertainments and society life in Europe. But it is also a city with its own identity, with a nice historical centre and several interesting areas. Sa Penya, the heart of the old port of Ibiza and the ideal place for those who love wandering, is rich in typical small shops, cobbled paved passages and alleys. Light-heartedness is constantly in the air. The ancient high city, D’Alt Vila, is the primitive nucleus of Ibiza. It was built on a rocky high ground and it was surrounded by walls (built in the XVI century by Philip II), today it is the oldest fortress in Europe. Today it hosts the Museum of Contemporary Arts.