Don Wildman travels to the farthest and deepest reaches of the globe, using cutting-edge technology to explore mysteries buried deep underground.
| Title | Cities of the Underworld |
|---|---|
| Genres | Documentary |
| First Air Date | 2007-03-02 |
| Last Air Date | 2021-10-26 |
| Episode Runtime | 00 Hours 43 Minutes |
| Total Season(s) | 4 |
| Total Episode(s) on All Seasons | 48 |
| Runtime | |
| Production Companies | Thirty Four Productions, Authentic Entertainment |
