Cities of the Underworld 17 years old
![Cities of the Underworld](https://image.tmdb.org/t/p/w780/llhk4L8ZacrrtS9oL4eaq7aECLU.jpg)
Don Wildman travels to the farthest and deepest reaches of the globe, using cutting-edge technology to explore mysteries buried deep underground.
![Cities of the Underworld poster](https://image.tmdb.org/t/p/w300/hSBetn4dWzxjIs5lXW6M3wxAOXj.jpg)
Cities of the Underworld (17 years)
Returning Series
- First Air Date: 2007-03-02
- Runtime: [43] minutes
- Number of Episodes: 48