Imagine a city where most of the population lives underground, in a network of tunnels and caves that span for miles. This is not a science fiction scenario, but a reality for the residents of Coober Pedy, a remote town in the Australian outback. In this video, we will explore the history, culture, and challenges of this unique and fascinating place. #brightside #brightsidemystery TIMESTAMPS: 0:01 Lost city found 09:56 Living underground on Mars 17:47 Mountains buried 400 miles underground This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.