A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways.
The Imperial Towers of Ontario were six of the earliest lighthouses built on Lake Huron and Georgian Bay, all constructed primarily of stone, by the Province of Canada. The origin of the designation Imperial is not certain, but some historians speculate that because the towers were public construction built under the colonial administration while Canada was a self-governing colony of Britain, the name would assure at least some funding from the British Empire's Board of Trade.
Sand Island Light, also known as Sand Island Lighthouse, is a decommissioned lighthouse located at the southernmost point of the state of Alabama, United States, near Dauphin Island, at the mouth of Mobile Bay, Alabama. It is located roughly 3 miles offshore from the primary Mobile Bay entrance, bounded on the east by Mobile Point and on the west by Dauphin Island. The lighthouse is 132 feet (40 m) high.
Alcatraz Island Lighthouse is a lighthouse—the first one built on the U.S. West Coast—located on Alcatraz Island in California's San Francisco Bay. It is located at the southern end of the island near the entrance to the prison. The first light house on the island was completed in 1854, and served the bay during its time as a Citadel and military prison. It was replaced by a taller concrete tower built in 1909 to the south of the original one which was demolished after it was damaged due to earthquake in 1906. The automation of the lighthouse with a modern beacon took place in 1963, the year Alcatraz closed as the Alcatraz Federal Penitentiary. It is the oldest light station on the island with a modern beacon and is part of the museum on the island. Although when viewed from afar it easily looks the tallest structure on Alcatraz, it is actually shorter than the Alcatraz Water Tower, but as it lies on higher ground it looks much taller.
Old Mackinac Point Light is a deactivated lighthouse located at the northern tip of the Lower Peninsula in the U.S. state of Michigan. The lighthouse is part of Fort Michilimackinac State Park in the village of Mackinaw City just east of the Mackinac Bridge.
Middle Bay Light, also known as Middle Bay Lighthouse and Mobile Bay Lighthouse, is an active hexagonal-shaped cottage style screw-pile lighthouse. The structure is located offshore from Mobile, Alabama, in the center of Mobile Bay.
Concord Point Light is a 36-foot (11 m) lighthouse in Havre de Grace, Maryland. It overlooks the point where Susquehanna River flows into the Chesapeake Bay, an area of increasing navigational traffic when it was constructed in 1827. It is the northernmost lighthouse and the second-oldest tower lighthouse still standing on the bay.
The Menominee North Pier lighthouse is located in the harbor of Menominee, Michigan. The station was first lit in 1877. The current structure and its still operational light was lit in 1927, and automated in 1972. It is also sometimes called the "Menominee (Marinette) North Pierhead Light".
Pointe aux Barques Lighthouse is an active lighthouse located in Huron County in the U.S. state of Michigan. It is located along the shores of Lake Huron on the northeastern tip of the Thumb. Originally constructed in 1848, it is one of the oldest active lighthouses in the state. The name is translated as "point of little boats" from the French language, which refers to the shallow coastline that poses a threat to larger boats.
The Rock of Ages Light is a U.S. Coast Guard lighthouse on a small rock outcropping approximately 2.25 miles (3.62 km) west of Washington Island and 3.5 miles (5.6 km) west of Isle Royale, in Eagle Harbor Township, Keweenaw County, Michigan. It is an active aid to navigation.
The Sand Point Lighthouse is located in Escanaba, Michigan, United States, on Lake Michigan's northern shore. Since 1989, it has been an unofficial aid to navigation. Though it is an operational aid to navigation. The restored lighthouse is now open to the public during the summer months. It is also known as the Escanaba/Sand Point Light or the Escanaba Light.
Marshall Point Light Station is a lighthouse at the entrance of Port Clyde Harbor in Port Clyde, Maine. The light station was established in 1832.
The history of lighthouses in Canada dates back to 1734.
The Grand Island Harbor Rear Range Light is a lighthouse located off M-28 in Munising Township, Michigan. It is also known as the Bay Furnace Rear Range Light, Christmas Rear Range Light, or End of the Road Light. The corresponding front range light was replaced in 1968; the rear range light was listed on the National Register of Historic Places in 1990. It is no longer an active aid to navigation.
Lange Jaap, also known as Kijkduin Light or Den Helder Light, is an active lighthouse near Fort Kijkduin in Huisduinen, Netherlands. At a height of 63.5 metres (208.2 ft) it is one of the tallest "traditional lighthouses" in the world. For almost a century, from 1878 to 1974, it was the tallest lighthouse in the Netherlands, until the construction of the Maasvlakte Light. According to The Lighthouse Directory it is the tallest non-skeletal cast-iron lighthouse in the world.
Pigeon Point Light Station or Pigeon Point Lighthouse is a lighthouse built in 1871 to guide ships on the Pacific coast of California. It is the tallest lighthouse on the West Coast of the United States. It is still an active Coast Guard aid to navigation. Pigeon Point Light Station is located on the coastal highway, 5 miles (8 km) south of Pescadero, California, between Santa Cruz and San Francisco. The 115-foot (35 m), white masonry tower, resembles the typical New England structure.
The Ontonagon Light is a lighthouse located off M-64 near Ontonagon, Michigan. It was listed on the National Register of Historic Places in 1975 and designated a Michigan State Historic Site in 1973.
Rawley Point Light is a lighthouse located in Point Beach State Forest, near Two Rivers, Wisconsin. At 111 feet (34 m) tall, it is the tallest lighthouse on the Wisconsin Shore and it is listed on the National Register of Historic Places.
The Racine Reef Light was a lighthouse located in Lake Michigan some two miles east of Racine, Wisconsin, marking the edge of its eponymous shallows. It was torn down in 1961 and replaced with a skeleton tower on the same foundation.
Ilha de Santana Lighthouse is an active lighthouse on the namesake island located at the east entrance of the Baía de São Marcos, Maranhão, Brazil
