The site of the ancient city of Jizhou is located 500 meters northwest of Beiguan Village, Jizhou Town, Jizhou District, Hengshui City, Hebei Province, to Qianzhao Village in the west and Houzhao Village in the north. It is a section of earth wall on the northwest of the ancient city of Jizhou in the Han Dynasty. The site of the ancient city of Jizhou extends from northeast to southwest, with a total length of 4500 meters and a distribution area of 2.25 million square meters. The highest point is 8 meters, and the widest points at the bottom and top are 30 meters and 10 meters respectively. The ditch along the west and north of the city site is the moat of the original city. The ancient city was built during the reign of Emperor Gao of the Western Han Dynasty and has a history of more than two thousand years. In the Western Han Dynasty, the city was 12 weeks old. In the Northern Song Dynasty, the city week was expanded to 25 li. Yuan, Ming and Qing dynasties also added.

Kitt Lake is located in the state of Bavaria, Germany, and is the largest lake in the state, sometimes referred to as the 'Bavarian Sea'. There used to be a village called Lebarn, where the Haydn Tower is the remains of a late medieval church. This tower is not only the only remaining building in the village, but also a part of the bell tower and clock, with significant historical and cultural value. It is a four story building with a side length of 4.5 meters, and the mountain wall in front of its east side is speculated to be the front nave of St. Michael's Church. Although other buildings in the village no longer exist, the Hayden Tower still stands, becoming the only relic of the former village.