Military constructions by Spanish engineers have always been a supreme example of their skills. Here is a photo of a fortress that was built in Ibiza (before the night clubs). It is based on the Castle of St Philip of Cartagena of the Indies, where Blas de Lezo culminated his glorious campaign against Perfidious Albion.
The Island of Ibiza, because of its strategic position in the Mediterranean was throughout history an important military and commercial enclave. So, in 1554, Prince Felipe, the future Felipe II, commisioned the construction of a new fortress. The original project by Calvi was taken up many years later by the Italian engineer Fratín and remained until the 18 th century without any significant alterations.