At noon, take the train to the southernmost town of Carcassonne in France. It is close to Spain and has a famous castle. The ancient castle in Carcassonne is known as the largest and most complete castle in Europe. The medieval castle in Guruojintang has a dual wall of the inner city and the outer city, the inner wall is a Roman-style city fortress, the outer wall is a Gothic city wall, and the inner and outer city has 26 arrow buildings. After putting down the luggage, I was excited to go out of the city to board the castle, stroll in the city wall castle cave and the old street, feel the history of the knights of medieval Europe, until 7 pm from the castle, looking back at its silhouette feels a bit mysterious. Return to the ancient city river, night falls, look at the whole view of the castle from afar, very beautiful! Walk back to the hotel on the moonlight. The next day we went to the castle to visit, went out of the city gate and crossed the bridge to enter the magnificent castle. Into the castle, we had to pass the gate with the suspension bridge and remembered the knight Don Quixote. The picture in the camera is even better. By the way, although the castle is a world heritage-level attraction, there is no charge. There are several castle buildings with cultural relics that have to be charged for visiting, but there is no entry. There are old streets and hotels in the castle, and there are more tourists.