From WoWWiki
Human Castles
The mighty Castles of Lordaeron are the center of large military cities.
As with the lesser Keeps, Peasants may bring gold and lumber here for
judicious dispersal in order to sustain the war effort. These bastions
against invasion are guarded by fortified battlements, making them
virtually indestructible. The Castle represents the strength of the peoples
of the Alliance and their unyielding resolution to defend the whole of
humanity against the Orcish Hordes.W2Man 57
Castles represent the pinnacle of advanced human civilization.
With this advancement comes the ability to support stables for
housing the war-steeds of the heroic knights. This progression
also allows the building of gryphon aviaries.W3Man 76
High Elven Castles
The
Castle helped the
High Elves fend off Arthas as he tried to attack their capital
Silvermoon and
Quel'thalas in Warcraft III by serving as a returning point for gold and training units. The
Blood Elves use a different Castle that produces different units in the Frozen Throne Expansion Campaign in Warcraft III. It is the upgraded version of the
Town Hall. It cannot be built by the "
High Elf (Worker)" probably due to the limited ability of the map editor prior to the Frozen Throne Expansion. With the Frozen Throne Expansion map editor, it is possible to make additional groups with building orders.
Blood Elven Castles
The
Castle helped the
Blood Elves and
Kael'thas in Warcraft III Frozen Throne Human Expansion Campaign.
World of Warcraft
In World of Warcraft, the only human castles are the
Ruins of Lordaeron and
Stormwind Keep (the
castle had been raised upon the foundations of the keep).
W2 Sunfury Spire may be thought of as a blood elven castle.
See also