The only fortress of its architectural style still standing in the world today.

Pyrenees Adventure in Spain ~ Huesca (Region) Also known as "Castle of Jaca," this fortress was built between the 16th and 17th centuries under the orders of King Philip II and restored in 1968. Engineer Spanochi followed military architectural standards derived from the use of artillery. It is the only fortress of this architectural style still standing in the world today. The layout is pentagonal, with arrow-shaped bastions at each corner and a moat that now serves as a resting place for deer. Its drawbridge leads to the parade ground, which is surrounded by various barracks. One of these houses a military miniature museum, where you can learn more about the castle's history through 32,000 lead soldiers.