The Coral Museum of Alghero is located in the city center and is housed in an elegant Liberty Villa. Villa Costantino, the only Art Nouveau villa accessible to the public, guides us around the city to discover the other stately residences embellished with Art Nouveau details, built at the beginning of the twentieth century in the seafront area that goes from Piazza Sulis to Villa Las Tronas. The Museum was created to tell the strong identity of Alghero and its link with coral. A fascinating journey to discover the red gold of the Mediterranean Sea: the Corallium Rubrum, one of the main resources, as well as an identity symbol to which the Fortified City owes part of its fame and wealth. The Coral Museum offers the visitor the opportunity to learn about the history, biology and economy generated by the processing of this precious element, a real wealth for the city. A testimony enclosed in jewels, jewels and deep dives that make tradition live and relive.