An integral lighthouse is a lighthouse in which the tower and keeper's dwelling are united in one structure. Generally, the term is not used to refer to a caisson or screw-pile lighthouse.
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses and to serve as a navigational aid for maritime pilots at sea or on inland waterways.
A caisson lighthouse is a type of lighthouse whose superstructure rests on a concrete or metal caisson. Caisson lighthouses were developed in the late nineteenth century as a cheaper alternative to screwpile lighthouses. The Caisson design was also more efficient as it could better withstand harsh weather, and were not as fragile. Caisson lighthouses usually have living quarters made of cast iron, although some brick examples are known. The two American nicknames were later coined because of the structure's shape.
A screw-pile lighthouse is a lighthouse which stands on piles that are screwed into sandy or muddy sea or river bottoms. The first screw-pile lighthouse to begin construction was built by blind Irish engineer Alexander Mitchell. Construction began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. However, though its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit.
The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria, was a lighthouse built by the Ptolemaic Kingdom, during the reign of Ptolemy II Philadelphus, which has been estimated to be 100 metres (330 ft) in overall height. One of the Seven Wonders of the Ancient World, for many centuries it was one of the tallest man-made structures in the world.
Holborn Head is a headland on the north-facing Atlantic coast of Caithness, in the Highland area of Scotland. The point of Holborn Head is at 58°37′23″N03°32′06″W. The name Holborn appears Norse in origin, meaning hillfort, and the headland may be the Tarvedunum promotorium noted by Ptolemy. At the tip lies the remains of a promontory fort.
The Blackistone Island Light was a lighthouse located on what is now St. Clement's Island on the Potomac River in Maryland. It is best known as the target of a Confederate raid in the Civil War. Completed in 1851, the structure was destroyed by fire in 1956 and its shell was razed; a replica was completed in 2008.
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.
The Robbins Reef Light Station is a sparkplug lighthouse located off Constable Hook in Bayonne, Hudson County, New Jersey, United States, along the west side of Main Channel, Upper New York Bay. The tower and integral keepers quarters were built in 1883. It replaced an octagonal granite tower built in 1839. The U.S. Coast Guard owned and operated the light station until the 2000s.
Fort Point Light is a decommissioned lighthouse built on the third tier of Fort Point, which is now directly beneath the south anchorage of the Golden Gate Bridge in San Francisco, California. The lighthouse is at the south end of the narrowest part of Golden Gate strait. It was preceded by two other lighthouses in nearby locations. The present lighthouse was in operation from 1864 until 1934.
The New Castle Range Rear Light is a lighthouse in Delaware, United States, on the Delaware River near New Castle, Delaware.
The Sharps Island Light is the third lighthouse to stand nearly 3 miles (5 km) south-southwest from the southern end of Tilghman Island in Maryland's Chesapeake Bay. The structure is best known today for evoking the Leaning Tower of Pisa, a condition caused by an ice floe in 1977.
Sandy Point Shoal Light is a brick three story lighthouse on a caisson foundation that was erected in 1883. It lies about 0.6 mi (0.97 km) off Sandy Point, north of the Chesapeake Bay Bridge, from whose westbound span it is readily visible.
The Marquette Harbor Light is located on Lake Superior in Marquette, Michigan, a part of the Upper Peninsula. It is an active aid to navigation.
West Dennis Light is a lighthouse in West Dennis, Massachusetts. It was previously known as Bass River Light. It is owned by and sits on top of the Lighthouse Inn, a seasonal hotel.
The Sea Girt Light is a lighthouse marking the inlet leading to the Wreck Pond in Sea Girt in Monmouth County, New Jersey, United States. It hosted the first radio beacon mounted in a shore installation in the United States.
The Passage Island Light Station is a lighthouse located 3.25 mi (5.23 km) NE of Isle Royale, in NW Lake Superior, Michigan on Passage Island. It was listed on the National Register of Historic Places in 2006.
The Long Tail Point Light, also known as the Tail Point Light, was a lighthouse in Green Bay, Wisconsin, USA. Long abandoned but still standing, it was succeeded by two further structures, both since destroyed.
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.
The Minneapolis Shoal Light Station is a light house located in northern Green Bay, 6.6 miles (10.6 km) south of Peninsula Point near Big Bay de Noc, Michigan. It was listed on the National Register of Historic Places in 2006.
The Dyrhólaey Lighthouse is a lighthouse located on the central south coast of Iceland.
IGR J11014−6103, also called the Lighthouse Nebula, is a pulsar wind nebula, that has the largest relativistic jet observed in the Milky Way galaxy.
Ilhéu de Cima Lighthouse is a lighthouse on Ilhéu de Cima located about 80 m above sea level. The lighthouse is the only building inside the integral nature reserve Ilhéus do Rombo.
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