Construction_and_Engineering

**From ancient hideouts to Cold War-era bunkers, explore eight astonishing settlements beneath the Earth’s surface.**

## 1. Burlington
![](https://m.stacker.news/40242)
## 2. Orvieto
![](https://m.stacker.news/40243)
## 3. Derinkuyu
![](https://m.stacker.news/40244)
## 4. Petra
![](https://m.stacker.news/40245)
## 5. Naours
![](https://m.stacker.news/40246)
## 6. Wieliczka Salt Mine
![](https://m.stacker.news/40247)
## 7. Lalibela
![](https://m.stacker.news/40248)
## 2. Orvieto
![](https://m.stacker.news/40249)

**[...read more at history.com](https://www.history.com/news/8-mysterious-underground-cities)**