France: Fougeres Chateau
Fougeres Chateau claims to be the largest fortress in Europe (which I kind of doubt). Nevertheless, it is a spectacular medieval fortress built in the 11th century on a rock that the local river had to flow around – thus creating a natural moat. Then there are a total of 13 defensive towers protecting a large central area. You can walk all around the perimeter of the wall as well as climb several tower to the roof. Another great view is from the town just above the fortress.
