Friar Tower

Friar Tower - Credit: Wikimedia Commons

The Torre del Fraile (Tower Canutos or Friar Tower) is one of a set of military watchtowers built around the South and East coast of Spain to keep an eye on passing shipping and Barbary pirates. The watchtowers were in sight of one another and it was therefore possible to get a signal to Gibraltar from the watchtower in Tarifa. The tower was designed by Luis Bravo and Juan Pedro Laguna in 1588. Read more on Wikipedia

type: historic site
date from: 1588

Source: en.wikipedia.org