An underground ancient city with thousands of years of history😱😱

I wonder if you can imagine 50,000 people living in this underground ancient city thousands of years ago? And this underground ancient city is even 12 floors deep, we stay in this underground world twenty-four hours a day! 🤯 Walking in more like an underground maze, the route is very complicated, following the bag if you have a walk can easily get lost. There is a kitchen, living room, bedroom, even a church inside - it can be said that the development is very mature. I heard that this underground ancient city was built to escape war and plague, to protect their clan. 🤯🤩 💰Average consumption per person: ~$200 #globaltravel