Underground Marvels
Episode List: Underground Marvels
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| Date (↑) | Episode # | Title | Network | Rating | Share | Viewers | Watch/Purchase DVD/Download |
|---|---|---|---|---|---|---|---|
| 10/17/2019 | 01-001 | Secrets of the Rock | Science | ||||
| 10/24/2019 | Mystery of the Lost Labyrinth | Science | |||||
| 10/31/2019 | Secrets of the Terror Tunnels | Science | |||||
| 11/07/2019 | Science | ||||||
| 11/14/2019 | Cave of the Body Snatchers | Science | |||||
| 11/21/2019 | World's Biggest Labyrinth | Science | |||||
| 11/28/2019 | Mysteries From Below | Science | |||||
| 12/05/2019 | Treasures of the Lost Mine | Science | 0.23 | ||||
| 12/12/2019 | Science | 0.26 | |||||
| 12/19/2019 | Conspiracy in the Buried City | Science | 0.26 | ||||
| 12/26/2019 | Curse of Cannibal Caves | Science | 0.3 | ||||
| 08/05/2021 | 02-001 | Hotel Bunker of the Apocalypse | Science | ||||
| 08/12/2021 | Mystery of the Kentucky Cave | Science | |||||
| 08/19/2021 | Cincinnati's Secret Caverns | Science | |||||
| 08/26/2021 | Buried Lab of the Black Hills | Science | |||||
| 09/02/2021 | Ireland's Underground Alcatraz | Science | |||||
| 09/09/2021 | Subterranean Silo Survival | Science | |||||
| 09/16/2021 | Italy's Subterranean Secret | Science | |||||
| 09/23/2021 | Grand Canyon's Lost Treasure | Science | |||||
| 09/30/2021 | Murder Raid Tunnels | Science | |||||
| 10/07/2021 | Medieval Maze of Secrets | Science |
