Royal Alcázar of Segovia (castle) built
1200 CE.
Shown on the map at 40.953°, -4.133°.
The Alcázar of Segovia is a medieval castle located in the city of Segovia, in Castile and León, Spain. It has existed since at least the 12th century, and is one of the most renowned medieval castles globally and one of the most visited landmarks in Spain. The fortress stands on a rocky crag at the western end of Segovia's Old City, which was declared a UNESCO World Heritage Site in 1985, above the confluence of the rivers Eresma and Clamores. Since its declaration as a National Archive by a Royal Decree in 1998, it has been used as a museum and a military archive. It has also been used as a state prison, a Royal Artillery College, and a military academy. The Alcázar served both as a royal palace and a fortress for the Castilian monarchs. Its history begins in the 12th or early 13th century when the royal family of Castile had quarters in the Alcázar, known as the "major palace". In the Homage tower, the treasure of the Crown of Castile was stored, from which funds were secured to finance Christopher Columbus's first voyage.
Text from the Wikipedia article Alcázar of Segovia, licensed CC BY-SA 4.0.