Signal stations are communication points used to relay messages over long distances, often through visual signals like flags, lights, or smoke. They were historically important for military and maritime communication, allowing for quick transmission of information without the need for written messages. These stations are typically located on high ground or strategic locations to maximize visibility. In addition to military use, signal stations have also been employed in lighthouses and telegraphy to enhance navigation and communication, playing a crucial role in the development of modern communication systems.