Cities of the Underworld

Season 4

TV-PG

As we descend beneath our modern day cities, we are met with ancient and hidden secrets. Journey with us back through history and rediscover cities of the underworld.

Where to Watch Season 4

8 Episodes

Mayan Apocalypse
E1
Mayan ApocalypseDon Wildman explores deep below ancient ruins as he searches for clues pointing to the true fate of the once-mighty Mayan empire.
America's Military Underground
E2
America's Military UndergroundDon explores top-secret military and government tunnels and looks into classified technology that could be used to build entire cities... right under our feet.
America's Unmapped Murder Tunnels
E3
America's Unmapped Murder TunnelsDon uses brand-new mapping technology to expose the dark and deadly uncharted spaces beneath American cities. He explores the criminal underworld below Portland, Oregon; Seattle, Washington; Chicago, Illinois; and Los Angeles, California.
America's Ancient Ancestors
E4
America's Ancient AncestorsDon goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.
The Pirate Queen's Lair
E5
The Pirate Queen's LairDon explores newly discovered ruins and caves in Croatia as he uncovers the true story of a formidable queen who dared to defy the mighty Roman Empire.
Templars and The Founding Fathers
E6
Templars and The Founding FathersDon goes deep beneath Bagras Castle, a Knights Templar stronghold in Turkey, to explore a provocative theory that may link the fabled secret society to Freemasonry and America's founding fathers. He also explores the Old North Church in Boston, Massachusetts and Fort Mifflin in Pennsylvania.
Secrets of the Ancient Metropolis
E7
Secrets of the Ancient MetropolisDon explores the massive underground cities in the mountains of Turkey that may have been home to the first civilization on Earth.
The Lost Aztec Colony
E8
The Lost Aztec ColonyDon follows the clues hidden underground as he searches for evidence of 10,000 Aztecs who fled Mexico and disappeared somewhere in America.