On this issue, I think the county town of Tekes County in Xinjiang is the largest "Bagua City" at present, because this county town, with its unique and exquisite layout of gossip, the perfect combination of ancient and mysterious cultural connotation and modern civilization, constitutes the only well-built and regular Bagua City in China. In this mysterious city, you can truly feel the ancient and mysterious China Yijing culture. Tex Bagua City first appeared in Jiading, Southern Song Dynasty (AD 1220). Qiu Chuji, one of the seven true sons of Taoism and the founder of Longmen Sect, was invited by Genghis Khan to go to the Western Regions. When passing through the Tex Valley, Qiu Chuji was moved by the mountains, rivers and water in the valley. It is said that it combines the strength of mountains, the softness of rivers and the abundance of water, and takes it as the core of geomantic omen in Bagua City. Taking Long Mai as an example, "harmony between heaven and earth, integration of east and west, harmony between man and nature, and outstanding people", the positioning of the Eight Diagrams in the future has become the most primitive prototype of Tex City. 1936, the reclamation of Yili, which was proficient in Yi-ology, made Qiu Zongjun come to Tex, and discovered the embryonic orientation of Bagua City and the "Feng Shui Long Mai". Construction has started again. It took two years for 20 cows to pull the plough and countless pieces of cloth to outline the shape of Tex. The roads in Tekes County are connected with each other, and so are the streets. The magical labyrinthine street layout is radial and circular. It is the only Bagua City in the world with complete preservation, complete hexagrams and the largest specifications, which fully embodies the mathematical principles of 64 hexagrams and 386 Yijing in urban layout. But you can only see the whole city from a height. Bagua city takes the meaning of "heaven and earth meet and everything is connected, up and down are the same" in the Book of Changes. This is a classic of geomantic architecture.
I hope the above answers are helpful to you.