Underground Marvels
TVPG
Documentary
Uncovering subterranean phenomena around the globe and their impressive stories.
Cast & Crew
Upcoming TV Airings
The airings below are based on a generic national schedule. Times and dates can vary by TV provider.
Monday, December 15
The Renegade's Lair
Season 1 • Episode 4
Experts investigate a strange underground system known as the Black Cave.
Monday, December 15
Cave of the Body Snatchers
Season 1 • Episode 5
Experts excavate an eerie system of underground vaults in Scotland for thieves who stole corpses.
Monday, December 15
Secrets of the Terror Tunnels
Season 1 • Episode 3
A system of tunnels built almost 3,000 years ago was the site of the greatest battles of antiquity.
Monday, December 15
Curse of Cannibal Caves
Season 1 • Episode 10
Explorers investigating a cave system uncover evidence of cannibalism among its Ice Age denizens.
Monday, December 15
Ghosts of the Hell Maze
Season 1 • Episode 8
A labyrinth of vast tunnels in the French countryside has served as a secret hideout during wartime.
Monday, December 15
Conspiracy in the Buried City
Season 1 • Episode 9
Experts reveal the truth behind an ancient city hidden five-stories underground.
Monday, December 15
World's Biggest Labyrinth
Season 1 • Episode 6
New discoveries about a cave system reveal secrets of Nazi occupation and Cold War subterfuge.
Tuesday, December 16
Ghosts of the Hell Maze
Season 1 • Episode 8
A labyrinth of vast tunnels in the French countryside has served as a secret hideout during wartime.
Tuesday, December 16
Conspiracy in the Buried City
Season 1 • Episode 9
Experts reveal the truth behind an ancient city hidden five-stories underground.
Tuesday, December 16
World's Biggest Labyrinth
Season 1 • Episode 6
New discoveries about a cave system reveal secrets of Nazi occupation and Cold War subterfuge.
Tuesday, December 16
Curse of Cannibal Caves
Season 1 • Episode 10
Explorers investigating a cave system uncover evidence of cannibalism among its Ice Age denizens.
Tuesday, December 16
The Renegade's Lair
Season 1 • Episode 4
Experts investigate a strange underground system known as the Black Cave.
Monday, December 22
Hotel Bunker of the Apocalypse
Season 2 • Episode 1
Experts investigate the top-secret construction of a massive nuclear bunker in West Virginia.
Monday, December 22
Mystery of the Lost Labyrinth
Season 1 • Episode 2
Investigating a centuries-old labyrinth built into an abandoned quarry by an eccentric millionaire.
Monday, December 22
Treasures of the Lost Mine
Season 1 • Episode 7
Caverns are home to a precious mineral found nowhere else on Earth.
Monday, December 22
Secrets of the Rock
Season 1 • Episode 1
The secrets of a subterranean city built within the Rock of Gibraltar.
Monday, December 22
Murder Raid Tunnels
Season 2 • Episode 3
WWII bomb shelter that became a permanent refuge for many civilians after a devastating attack.
Monday, December 22
Buried Lab of the Black Hills
Season 2 • Episode 6
Experts reveal advancements engineers achieved more than a century ago.
Monday, December 22
Subterranean Silo Survival
Season 2 • Episode 7
Experts investigate a decommissioned missile launch facility in Kansas.
Tuesday, December 23
Buried Lab of the Black Hills
Season 2 • Episode 6
Experts reveal advancements engineers achieved more than a century ago.
Tuesday, December 23
Subterranean Silo Survival
Season 2 • Episode 7
Experts investigate a decommissioned missile launch facility in Kansas.
Wednesday, December 31
Hotel Bunker of the Apocalypse
Season 2 • Episode 1
Experts investigate the top-secret construction of a massive nuclear bunker in West Virginia.
Wednesday, December 31
Ireland's Underground Alcatraz New
Season 2 • Episode 9
Experts investigate how a military fortress in Ireland transformed into a brutal prison.
Wednesday, December 31
Subterranean Silo Survival
Season 2 • Episode 7
Experts investigate a decommissioned missile launch facility in Kansas.
Wednesday, December 31
Treasures of the Lost Mine
Season 1 • Episode 7
Caverns are home to a precious mineral found nowhere else on Earth.
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