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In this episode, we learn about one of the most mysterious places in the world, surrounded by many myths and questions.

A city that is still burning!
duration: 04:49
The city of Centralia, Pennsylvania, in the United States, became a ghost town as a result of an underground fire that broke out in the ....

underground city
duration: 06:01
In this episode, we take you on a journey to discover an underground city located in Egypt.