Lighthouses guide ships sailing near a coast.They are built in different kinds of places: important locations on a coast, harbor entrances, islands, rocky ledges or reefs, and even in the water.

• 灯塔负责引导驶近海岸的船只，它们建造在不同的地方：海岸边的重要位置、入港处、岛上、多石暗礁、沙洲地，甚或是水中。