Introduction to Chaoyang Gate: Chaoyang Gate is the southernmost moat of the Heavenly King's City. It is known as the "Yimeng Cape of Good Hope" and is a city wall made of huge stones.
Tazimen is the north gate among the six mountain gates. The slope here is steep and slippery, making it easy to defend and difficult to attack. It is very dangerous to go up and down. Legend has it that when the State of Qi attacked King Ji's Gugu here, King Ji came down the mountain through this door. Stories about "King Ji wearing his boots upside down" and "thorns growing upside down" have been passed down here from generation to generation.