The Garden of Aiur was formed at the end of the Aeon of Strife, established as a centre for peace, tranquility and reflection on the ways of the Khala. After Aiur fell to the zerg however, it has since become a focal point for pitched conflicts between the zerg, mercenary terrans and the few remaining protoss forces who remain on their homeworld. Ironically, this could be said to benefit the garden, the blood of the fallen 'feeding' it.
The garden serves as a multiplayer map for StarCraft, supporting up to eight players.
1998-11-20, Garden of Aiur. StarCraft Compendium Map Archives. Accessed 2007-07-05