Impossible discoveries have been made. Some of the world's greatest historical inventions are merely reinventions of contraptions made thousands of years before. See the incredible ingenuity of history's great minds as the secrets of these ancient discoveries are unraveled.
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | 0 | ||
| Season 1 | December 2003 | December 2009 | 6 |
| Unassigned Episodes | 0 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | December 2003 | December 2009 | 6 |
| Unassigned Episodes | 0 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | December 2003 | December 2009 | 6 |
| Unassigned Episodes | 0 |
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