Fuentidueña de Tajo Castle is a large, irregular building standing on a hill which dominates the Town and the Tagus River. It is believed to have been built during the 12th century and has been extended and rebuilt later on in the 14th century. It is related to the Kings, Alfonso VI and Alfonso VIII.
It still has a wall and part of the cylindrical towers on the sides. The two sections composing it are separated by an interior moat. It is still possible to see the Homage Tower opposite the Town.This castle was the Headquarters of the Kingdom in the time of Da Urraca, wife of Alfonso I the Warrior; legend has it that at night she used to walk through the hidden corridors to visit the Moors.
The provincial Governor, Pedro Manrique, was imprisoned in this Castle by order of Juan II. Álvaro de Luna, Marquis of Villena, was also made prisoner for his discrepancies with the Order of Santiago; he later became the proprietor of the Castle.
The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.