In Genshin Impact, the Ancient City Key and Chizhang Wall Map are important items that can be found in the valley Chenyu and use it to find valuable treasures and unlock the achievement “How the Endless Wall was Built.” In this guide, you will learn how to find these items and where the Millelite warehouse with chests is located.
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Where to find the ancient city key in Genshin Impact
How to solve the jade tripod puzzle in the valley Yaode
Travel to the teleportation point at the western end of Yaode Valley, then head east to the ruins below. Here you will find a closed grate and a puzzle with a jade tripod.
To open the lattice door, stand behind the right censer, as shown in the picture below, and then use the power of the Adepts ( press the “T” key on the tripod in front. Then go into the small stone room and open the rich chest hidden here.
Inside you will find an ancient city key and a map called “Chizhang Wall”, which talks about military equipment hidden in a certain place. Now you have to find him.
How to use the “Chizhan Wall” card
Where to find the Millelite warehouse
Teleport to the waypoint in the south of the Chizhang Wall, and then glide south towards the dilapidated tower shown in the screenshots below. Enter it through the window on the right or the passage from above.
Then go to the steel grate, behind which you can see a chest, and click on the “Activate” sign to use the previously selected key.
As a result, you can go into a small closet, where you will find one precious and a couple of ordinary ones chests. Take their contents to unlock the achievement “How the Endless Wall was Built,” which gives 5 primogems.