Castillo de Loarre

You're standing at the Castle of Loarre, on a rocky outcrop in Aragon, in northern Spain. It's one of the oldest castles in the country, and many consider it one of the most beautiful too. Look at how the buildings follow the shape of the rock. A single, unified structure just wasn't possible here. So Loarre is a cluster of towers, churches and walls, held together by curtain walls.