Name: Cities of the Underworld
Genre: Documentary
Cast: Don Wildman, Eric Geller

Quick answer · Season 4

Cities of the Underworld is a documentary series that aired on History, running from 2007 to 2021 with 4 seasons and 47 episodes. Cities of the Underworld has ended. Its final episode aired on October 26, 2021.

U.S. premiere: September 7, 2021
Where: Cable
Time: Varies by station
Episodes: 8
Finale: October 26, 2021

Where to watch Cities of the Underworld season 4 in the U.S.

Where to watch Cities of the Underworld season 4 in the U.S.
Where	How	When	Notes
Cable	Broadcast (free)Antenna / cable	September 7, 2021 – October 26, 2021	Original U.S. run on History. [1]

Season 4 episode schedule

Cities of the Underworld season 4 U.S. episode schedule
Ep.	Title	U.S. date	Time	Status
1	Mayan Apocalypse	Tue, Sep 7, 2021 ^[1]	Check local listings national slot	Listed
2	America's Military Underground	Tue, Sep 14, 2021 ^[1]	Check local listings national slot	Listed
3	Murder Tunnels	Tue, Sep 21, 2021 ^[1]	Check local listings national slot	Listed
4	America's Ancient Ancestors	Tue, Sep 28, 2021 ^[1]	Check local listings national slot	Listed
5	The Pirate Queen's Lair	Tue, Oct 5, 2021 ^[1]	Check local listings national slot	Listed
6	Templars And The Founding Fathers	Tue, Oct 12, 2021 ^[1]	Check local listings national slot	Listed
7	Secrets of the Ancient Metropolis	Tue, Oct 19, 2021 ^[1]	Check local listings national slot	Listed
8	The Lost Aztec Colony	Tue, Oct 26, 2021 ^[1]	Check local listings national slot	Listed

Dates are U.S. dates. Broadcast times are the network's national slot; your local station may differ.

About Cities of the Underworld

Season 4: Season 4 of Cities of the Underworld aired from September 7, 2021 to October 26, 2021 on History (8 episodes).

Network / service: History (first aired April 23, 2007)
Official site: watch.historyvault.com
Main cast over the series (TVmaze): Don Wildman (Host), Eric Geller (Host)

All seasons

Season 4

Season complete

Season 4 of Cities of the Underworld aired from September 7, 2021 to October 26, 2021 on History (8 episodes).

Cable

Season 3

Season complete

Season 3 of Cities of the Underworld aired from October 26, 2008 to February 9, 2009 on History (13 episodes).

Cable

Season 2

Season complete

Season 2 of Cities of the Underworld aired from January 28, 2008 to May 5, 2008 on History (13 episodes).

Cable

Season 1

Season complete

Season 1 of Cities of the Underworld aired from April 23, 2007 to July 30, 2007 on History (13 episodes).

Cable

Common questions

How many seasons of Cities of the Underworld are there?

Cities of the Underworld has 4 seasons and 47 episodes listed, airing from April 23, 2007 to October 26, 2021.

Is Cities of the Underworld cancelled or ended?

Cities of the Underworld has ended. Its final episode aired on October 26, 2021.

Where can I watch Cities of the Underworld?

Cities of the Underworld originally aired on History in the U.S. Streaming rights for older seasons change over time, so check History's own app and the major streaming services for the current home.