The Corderie Royale International de la mer is a vast museum complex located in the heart of the maritime Arsenal de Rochefort. The Corderie Royal is one of the most important buildings in the arsenal and was one of the first built when the city was founded in 1666.
For nearly two hundred years, the building, which is more than 374 metres long, was used to furnish the rigging (or cordage) of the French Navy. The length of the central building corresponded to the manufacture of a rope of a single cable length.
In 1926, it was decided to close the Rochefort arsenal, with the consequent gradual abandonment of the Corderie. Today it is home to the International Sea Centre, is a vast museum space that is part of the Arsenal de Rochefort (Grand Arsenal) in Rochefort, France, the city's historic, cultural and tourist landmark, which also includes the Musée National de la Marine (National Naval Museum), the construction site of the replica of the frigate Hermione, and the renovation project of the Office of the Commissioner of the Navy on Rochefort's food wharf.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.