Wall

A wall is a relatively inexpensive defensive structure used to prevent units from entering an area, and are often made of stone. Walls in Age of Empires can be upgraded, respective to the civilization in use. In Age of Empires II, it is possible to build a gate, which allows friendly units through, and these can also be built in a section of wall if it is the correct size. In Age of Empires III, walls are simply clicked on and selected to become a gate, with a small cost of Wood.

Age of Mythology
Walls are always available in the Archaic Age, but can be upgraded through the different Ages.

Between the first three cultures, the Egyptians lead with the best Walls, however with The Titans expansion, the Atlanteans have overtaken them. The Norse possess the worst type, having only the Stone Wall upgrade. While the Greeks are the only culture with a God granted upgrade, with Hera's Athenian Wall upgrade

Wall types

 * Wooden Wall
 * Stone Wall
 * Fortified Wall
 * Citadel Wall
 * Bronze Wall
 * Iron Wall
 * Orichalkos Wall