| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Pre-Diluvian Civilizations |
September 11, 2022
|
26 | |
| S04E02 | Zep Tepi: The Lost History of Egypt |
September 18, 2022
|
28 | |
| S04E03 | Lost Civilizations of the Fertile Crescent |
September 25, 2022
|
25 | |
| S04E04 | Underground Cities of Cappadocia |
October 2, 2022
|
26 | |
| S04E05 | The Sunken Kingdom of Krishna |
October 9, 2022
|
24 | |
| S04E06 | Moai Megaliths of Easter Island |
October 16, 2022
|
29 | |
| S04E07 | The Layers of Machu Picchu |
October 23, 2022
Gaia
|
29 | |
| S04E08 | Megalithic Mysteries of Lake Titicaca |
October 30, 2022
Gaia
|
27 | |
| S04E09 | Pre-Diluvian Architects of Palenque |
November 6, 2022
Gaia
|
30 | |
| S04E10 |
Japanese Megaliths & the Mu Empire
season finale
|
November 13, 2022
Gaia
|
28 |
No artwork of this type.
No artwork of this type.