Cities of the Underworld

Season 1

• Episode 1 - Istanbul
• Episode 2 - Scotland's Sin City
• Episode 3 - Hitler's Underground Lair
• Episode 4 - Rome's Hidden Empire
• Episode 5 - Catacombs of Death
• Episode 6 - City of Caves
• Episode 7 - New York
• Episode 8 - London's Lost Cities
• Episode 9 - Beneath Vesuvius
• Episode 10 - Freemason Underground
• Episode 11 - Dracula's Underground
• Episode 12 - Secret Pagan Underground
• Episode 13 - Underground Bootleggers

Season 2

• Episode 1 - Underground Apocalypse
• Episode 2 - Vietnam
• Episode 3 - A Bomb Underground
• Episode 4 - Viking Underground
• Episode 5 - Hitler's Last Secret
• Episode 6 - Maya Underground
• Episode 7 - Mob Underground
• Episode 8 - Prophecies From Below
• Episode 9 - New York- Secret Societies
• Episode 10 - Washington, D.C.- Seat of Power
• Episode 11 - Stalin's Secret Lair
• Episode 12 - Katrina Underground
• Episode 13 - Secret Soviet Bases

Season 3

• Episode 1 - City of Blood
• Episode 2 - Tunnels of Hell
• Episode 3 - Real Mafia Underground
• Episode 4 - Secret Sin City
• Episode 5 - Hitler's Trenches
• Episode 6 - Barbarians' Lair
• Episode 7 - Land of Manson
• Episode 8 - Gladiators- Blood Sport
• Episode 9 - Secret Holy Land
• Episode 10 - Under The Rock
• Episode 11 - Tomb of the Lost Mummies
• Episode 12 - Gods of War
• Episode 13 - Alcatraz Down Under