Masonry

Masonry is a Technology available on Age of Empires II from the University in the Castle Age. It is available to just about every Civilization in the game. However, some civilizations do not have the ability to research this Technology.

Effects
It increases the Hit Points of every building by 10%; and increases their armor by +3, making every building stronger, particularly against Infantry and Cavalry Units. The Technology Architecture is the further upgrade of this technology, with the same effect.