Beacons are aids to navigation devices. Intentionally conspicuous, beacons help guide navigators to their destinations. Beacon types include radar reflectors, radio beacons, and sonic or visual signals. Visual beacons range from small, single-pile structures to large lighthouses or light stations and are located on land or in water. Lighted beacons are called lights; unlighted beacons are called daybeacons. Classically, beacons are fires lit on hills or high places, used either as lighthouses f… (More on Beacon)