If you describe a place as a labyrinth, you mean that it is made up of a complicated series of paths or passages, through which it is difficult to find your way. 迷宫
noun [抽象名词]迷宫;[解剖] 迷路;难解的事物
If you describe a situation, process, or area of knowledge as a labyrinth, you mean that it is very complicated. 错综复杂的事物