7 Sezon
56 Episod
Ancient Discoveries - Season 5 Episode 5 Episodul 5 (2009)
Unique technologies of ancient miners, including a Roman hydraulic system, sappers who could undermine castle walls and the 1689 origination of gunpowder mining in England.
- Țară :
- Gen : Documentary
- Studio : History
- Director :
- Distribuție : Sean Barrett
