Used to research unit improvements. The armory is also required to train certain units.
Trains and upgrades naval units.
An almost never ending source of food. A grainery must be built first in order for farms to be built around it.
Used to garrison units. Units garrisoned do not count to the population cap.
Allows units to pass through the section of the wall the gate is built on.
Allows farms to be built near the structure. Is also a drop point for food.
Increases population capacity by ten.
A drop point for resources. Can research technologies to improve resource gathering rates. Can be garrisoned with citizens to create a Town Center.
Builds and upgrades siege units.
Creates and upgrades cavalry units.
Trains Monks. Can heal units within its range.
Fires at nearby enemy units.
A drop point for resources. Creates citizens. Used to advance to the next age. Can research technologies to improve resource gathering rates.
Researches classified projects.
Can block off sections of the map from the enemy.