Fort of São João do Arade
Ferragudo, Portugal · built 1520
The Fort of São João do Arade (Forte de São João do Arade), sometimes referred to as the Castle of Arade, is a medieval fortification situated in the civil parish of Ferragudo in the Portuguese Algarve municipality of Lagoa.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).