In this architectural aspect the great poetic of Cadiz is that it rises on the same stone on which it sits. The city sits on a large stone platform ostionera that emerged from the ocean thousands of years ago forming two islands, Eryteia or La Roja, and Kontinousa or Isla de los Acebuches. On one of them the Phoenician sailors carved Gadir, and on the other rose the Roman Gades.
Many historic cities were sculpted from lands emerging from the sea, men built their palaces, walls and houses with the rise. Many of them, also disappeared later, others like Cadiz or as Valletta in Malta, are alive and it is an obligation to visit them and dive into the taste that leaves their marine history in its streets and buildings.
The ostionera stone can still be purchased today from local quarries in the area that continue to sell it. Although its use is much less than in the past, it is still part of the local Architecture of Cadiz and Andalusia. In this photo, the Cathedral of Cadiz, one of the oldest buildings in the city of Cadiz. Its underside was built entirely of ostion stone.