这个条目的其他章节
- ep.9 Germany (The Industrial Era)
- ep.10 Germany (The Atomic Era)
- ep.11 Norway (The Atomic Era)
- ep.12 Brazil (The Medieval Era)
- ep.13 Russia (The Medieval Era)
- ep.14 England (The Medieval Era)
- ep.15 England (The Industrial Era)
- ep.16 America (The Industrial Era)
- ep.17 America (The Atomic Era)
- ep.18 Russia (The Atomic Era)