"Reduces the cost of Library technologies and unit upgrades. Cannot be attacked. Once a day you may collect bonus gold."


  • The Bonus Gold increases by 5,000 per Age.
  • Enemy troops do not attack this building, much like how they ignore Fruit Trees and Gold Mines.
  • When the building is selected, a timer shows how long before the bonus Gold can be collected again.
  • A strong choice for every nation, Notre Dame can conserve an extreme amount of resources for the player. However, it doesn't offer much else defensively or offensively. If you seek a strong offensive or defensive option, this wonder is not for you.

Stats Edit

Age HP Health icon Technology Discount Unit Upgrade Discount Daily Gold Gold icon
Classical Age Invincible -10% -10% 5,000
Medieval Age 10,000
Gunpowder Age 15,000
Enlightenment Age 20,000
Industrial Age 25,000
Global Age 30,000
Atomic Age 35,000

Build Details Edit

Stage Cost Food Time Clock
1/5 80,000 5h 
2/5 80,000 5h 
3/5 80,000 5h 
4/5 80,000 5h 
5/5 80,000 5h 
Total: 400,000 25h

Historical DescriptionEdit


  • This wonder can save you up to 10 million in resources (provided that you completed this wonder prior to any Blacksmith research and Library techs acquired in the Classical Age). As of the Oil Boom update, it can save you much more Oil.