Petit Bé is a tidal island near Saint-Malo, France, close to the larger island of Grand Bé. There is a fort built in the 17th century. It was part of the defense belt designed by Vauban to protect the city of Saint-Malo from British and Dutch fleets. This belt also included the walls of the Saint Malo, Fort National, Fort Harbour, Fort de la Conchée, and the forts of Cézembre and Pointe de la Varde; these last two have been destroyed. The forts were built by the Saint-Malo engineer Siméon Garangeau.
The fort belonged to the French army until 1885. Later, the army turned the fort over to the city of Saint-Malo. It became a Monument historique in 1921, but was neglected until 2000, when the city gave a free rent to a non-profit organization for the renovation and visiting. At low tide the island can be reached on foot from the nearby Bon-Secours beach.References:
The Château Comtal (Count’s Castle) is a medieval castle within the Cité of Carcassonne, the largest city in Europe with its city walls still intact. The Château Comtal has a strong claim to be called a 'Cathar Castle'. When the Catholic Crusader army arrived in 1209 they first attacked Raymond-Roger Trencavel's castrum at Bèziers and then moved on to his main stronghold at Carcassonne.
The castle with rectangular shape is separated from the city by a deep ditch and defended by two barbicans. There are six towers curtain walls.
The castle was restored in 1853 by the architect Eugène Viollet-le-Duc. It was added to the UNESCO list of World Heritage Sites in 1997.