Bridge

Bridges are unconstructable structures in Age of Empires II. They can neither be attacked nor even selected, and are permanently on the map. As such, they are rather terrain elements than structures (like mountains or water). Still, Bridges are owned by a player and provide the owner with their LOS of 6. Bridges never change ownership, not even Gaia ones. Brigdes can only be placed diagonally in the Scenario Editor, not straight in north/south or east/west direction.

In The Age of Kings, the first brick Bridge was introduced, followed by the small Wooden Bridge in The Forgotten. Lastly, with Rise of the Rajas, the Southeast Asian Bridge was introduced, bringing the total to three.