Where: La Fermeté, France

Start of construction: 11th Century

End of construction: 19th Century

Most important renovation: 1845

Accessible: no

Important fact:

Current look is from the 17th century.

The castle is located in a large park of 156 hectares, surrounded by 7 kilometers of wall.

In use as a Bed & Breakfast, the only way to see the castle up close.