World → Entities Relation

File in server/game/World	Includes file in server/game/Entities
World.cpp	Creature / CreatureGroups.h
World.cpp	Item / ItemBonusMgr.h
World.cpp	Player / Player.h
World.cpp	Taxi / TaxiPathGraph.h
World.cpp	Unit / Unit.h
World.h	Object / ObjectGuid.h