A British tower repurposed into a Spanish fort

The Castillo de San Julián is a fort located on the Monte de San Julián in Cartagena, Spain. In 1706, the British captured Cartagena during the War of the Spanish Succession and built a cylindrical tower on the hill. Following the end of the war, the Spanish began building a fort to protect the mouth of the harbor, incorporating the existing British tower into the construction. This project took a long time and was completed in 1883.

The fort is built in neoclassical architecture and is essentially a bastioned fort, though it also contains tenailles and caponiers typical of polygonal forts. During the Spanish Civil War, the structure served as a military prison. Today, the fort remains intact but is in a rather dilapidated state.

The Castillo de San Julián is listed as a Bien de Interés Cultural. It is currently owned by Telefónica, which has installed a number of antennas within the fort. The city administration is currently attempting to acquire and restore the site.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons