The Emperor's Gardens is a botanical refuge where two-on-two combat between opposing forces once occurred. It is possible that they are the property of Arcturus Mengsk; current emperor of the Terran Dominion.
The area serves as the multiplayer map The Gardens in StarCraft: Brood War, supporting up to four players.
StarCraft: Brood War. Vivendi Games. Brood War Allied Maps (in English). 1998