beacon
marker to attract attention (used for navigation, or in war as a signalling device, or as a signally device for natural disaster like fire)
day beacon
unlighted nautical sea mark
William Livingstone Memorial Light
lighthouse in the United States
buoy
floating device
channel line
line of buoys delimiting a chanel
overhead wire marker
markers identifying overhead lines to aircraft
isotropic beacon
hypothetical type of transmission beacon that emits a uniform EM signal in all directions
Beacon of San Anton
beacon at La Coruña, Galicia, Spain
navigational buoy
floating navigational aids
racon
transmitter-receiver associated with a fixed navigational mark
beacon
conspicuous device designed to attract attention to vessels
spar buoy
type of seamark
Beacon of Punta Barca
beacon in Spain
safe water mark
type of sea mark
leading lights
light beacons used for watercraft navigation in a shallow or dangerous channel or as position fixing
Beacon of Home cape
beacon in Spain
Isla Bermejo Beacon
lighthouse in Argentina
Punta Lobos Beacon
lighthouse in Argentina
cardinal mark
sea mark indicating where safe water is near to a hazard
Raine Island Beacon
historic site in Queensland, Australia
Far de la Savina
lighthouse in Spain
Beacon of Barbate
beacon in Spain
beacon
ancient advance warning system
Baltimore Beacon
navigational beacon in Baltimore, County Cork
weather beacon
beacon that indicates the local weather forecast
special mark
type of sea mark
The Sand-Covered Church
church in Denmark
Inland waterway navigational beacon
Shipping sign for an inland waterway marking the channel
emergency locator beacon
radio-frequency beacon used to locate airplanes, vessels, and persons in distress