Saint Peter's Castle

The Ciudadela or Saint Peter's Castle was build in 1595 by order of Felipe II.
It's a pentagonal construction with defensive walls, with each corner connected by circular paths. It was constructed for the threat of the invasion by French heretics.
It was based on plans created by Tiburcio Spanochi and finished in the 18th century.
Its interior is accessed by a mannerist gate bearing the shield of the Austrias, currently a symbol of the city of Jaca. Along with Liege (Belgium) this is the only complete pentagonal example.
It was declared an artistic monument in 1951 and restored in 1968.Also a winner of the Premio Europa.(prize)
There's a Miniatures Museum (museum of miniatures) inside the castle. This is a little text about its history...
"The origins of this Museum are rooted in the collection of lead figurines which were gathered from the sixties onwards by Carlos Royo-Villanova, a miniatures fan and history lover. The little lead soldiers and their accessories, all to the same scale, (1:87, or some 20 mm in height), were mostly produced by Valencia-based company Alymer, which sold the figurines under the Miniploms name.(name of) Armies from (all over) the world were formed with excitement and lots of patience, with more than 35.000 pieces covering many periods of history. The collection was acquired by Jaca Council in 1984 and displayed in the Fuerte Rapitán.
In 2001, it was proposed that the collection be moved to the Castle of San Pedro, better known as the Citadel, with an agreement signed between Jaca Council (owner of the collection) and the Army (owner of the facilities), which created the new Military Miniatures Museum. The following year the Ministry of Defence authorised that one of the fortified rooms of the Castle, a space of almost 700 square metres, could be used as a museum.
The month of August 2003 saw work commence on creating the new museum, with the start of a modern museographic and artistic project. The restoration, inventory and cleaning of all the pieces also began, as well as the creation of the backdrops and dioramas. Led by a professional team of technicians, a group of volunteers from Jaca efficiently worked together on the restoration of the figurines. The project was rounded off with the design and production of the technical aspects and complementary services."