Underground Marvels (2019)
| First Air Date: | 2019, October 17 |
| Last Air Date: | 2021, October 7 |
| Status: | Returning Series |
| Seasons: | 2 |
| Episodes: | 20 |
| Episode Runtime: | 45 min |
| Countries: | United Kingdom, United States of America |
| Production: | Phoenix Television, TCB Media Rights |
| Cast: | Chris Jarman |
Overview:
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.