France: Carcassonne
The Only
Triple-Walled City
This medieval town has the only intact triple wall in Europe. During the Albigensian Crusade, of 1209, it was the seat of the heretic Occitan Cathars, an early precursor of the Protestant movement.
An ancient city
Carcassonne is a place of narrow alleys and ancient buildings. Below L: organ of the Church of St. Nazaire.