Carcassonne, a historic fortified city in the Occitanie region of southern France, is famed for its medieval citadel, La Cité, a UNESCO World Heritage Site. Nestled along the Aude River, Carcassonne enjoys a Mediterranean climate with hot summers and mild winters, making spring and autumn the best times to visit. The city is accessible via Carcassonne Airport and well-connected by train and road to major cities like Toulouse and Montpellier. Highlights of Carcassonne include exploring the ancient double-walled fortifications, the majestic Château Comtal, and the Basilica of Saints Nazarius and Celsus.