| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S03E01 | Empire State Building Decoded |
October 13, 2021
Science Channel
|
41 | |
| S03E02 | Rebuilding the Hoover Dam |
October 20, 2021
Science Channel
|
42 | |
| S03E03 | Statue of Liberty Secrets |
October 27, 2021
Science Channel
|
41 | |
| S03E04 | Fortress of Sound |
November 3, 2021
Science Channel
|
41 | |
| S03E05 |
Secrets of Stonehenge
series finale
|
November 10, 2021
Science Channel
|
41 |
No artwork of this type.
No artwork of this type.
No artwork of this type.