|• 100% Culture|
• Library level 10
• Armoury level 3
|Reduces the artillery unit cost by 25% and enables The Flying Machine|
It is recommended to build this Wonder for a player if he/she likes to battle and capture luxuries/resources around him/her as this unlocks a very powerful and fast flying unit called The Flying Machines.
However, the upkeep bonus has since been removed, causing the building to be largely useless after the Imperial Age, with the introduction of Industrial Bi-plane fighters.
- Enables the Flying Machine.
- Reduces the upkeep cost of artillery units by 25%.
Not known yet.