Torre Nueva

The Torre Nueva, also called Torrenueva and sometimes Torre Sabá, is a beacon located in the Andalusian town of La Línea de la Concepción and is one of the 44 towers of the same characteristics that dotted the Spanish coast from the river Guadiaro to the border with Portugal. All of them were built during the reign of Felipe III, along with others located along the Mediterranean coast from Málaga to Catalonia.

The purpose of these watchtowers was to warn the coastal population of the presence of Berber pirate ships, for which smoke signals and bonfires were used. At the top of each tower, there was always a bundle of dry wood to be burned immediately in case of danger, transmitting the alarm signal to the towers nearby.

Source: Wikipedia