The Castle of Fuentidueña de Tajo, perched on a hilltop overlooking the town in Madrid's Community, dates to the 12th century with significant extensions in the 14th century during the reigns of Kings Alfonso VI and Alfonso VIII. This medieval fortress, also known as the Castle of Santiago, features a preserved keep and partial towers. Though now in ruins, the castle remains an important example of Castilian military architecture and is protected under Spanish historical heritage law, with free public access to explore its strategic position above the landscape.
