Cities of the Underworld

Season 1

  1. Istanbul

  2. Scotland's Sin City

  3. Hitler's Underground Lair

  4. Rome's Hidden Empire

  5. Catacombs of Death

  6. City of Caves

  7. New York

  8. London's Lost Cities

  9. Beneath Vesuvius

  10. Freemason Underground

  11. Dracula's Underground

  12. Secret Pagan Underground

  13. Underground Bootleggers

Season 2

  1. Underground Apocalypse

  2. Vietnam

  3. A Bomb Underground

  4. Viking Underground

  5. Hitler's Last Secret

  6. Maya Underground

  7. Mob Underground

  8. Prophecies From Below

  9. New York- Secret Societies

  10. Washington, D.C.- Seat of Power

  11. Stalin's Secret Lair

  12. Katrina Underground

  13. Secret Soviet Bases

Season 3

  1. City of Blood

  2. Tunnels of Hell

  3. Real Mafia Underground

  4. Secret Sin City

  5. Hitler's Trenches

  6. Barbarians' Lair

  7. Land of Manson

  8. Gladiators- Blood Sport

  9. Secret Holy Land

  10. Under The Rock

  11. Tomb of the Lost Mummies

  12. Gods of War

  13. Alcatraz Down Under