A lightvessel, or lightship, is a ship that acts as a lighthouse. They are used in waters that are too deep or otherwise unsuitable for lighthouse construction. Although some records exist of fire beacons being placed on ships in Roman times, the first modern lightvessel was located off the Nore sandbank at the mouth of the River Thames in London, England, and placed there by its inventor Robert Hamblin in 1734. Lightships have since become largely obsolete; being largely replaced by lighthouses as construction techniques advanced, and by large automated navigation buoys.
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.
Point Lookout Light is a lighthouse that marks the entrance to the Potomac River at the southernmost tip of Maryland's western shore of the Chesapeake Bay, south of the town of Scotland in Saint Mary's County, Maryland, USA. The lighthouse is located in Point Lookout State Park. It is not open to the public.
The Turkey Point Light is a historic lighthouse at the head of the Chesapeake Bay. Although only a 35-foot (11 m) tower, the 100-foot (30 m) height of the bluffs on which it stands makes it the third highest light off the water in the bay. It is also known for the large number of women who served as lightkeeper.
Pooles Island Light is the oldest lighthouse still standing in Maryland and the fourth oldest in the Chesapeake Bay area. The light is located on Pooles Island in the central Chesapeake Bay.
The Cobb Point Bar Light was a screw-pile lighthouse located in the Potomac River.
The Cove Point Light is a lighthouse located on the west side of Chesapeake Bay in Calvert County, Maryland.
Drum Point Light Station also known as Drum Point Lighthouse is one of four surviving Chesapeake Bay screw-pile lighthouses. Originally located off Drum Point at the mouth of the Patuxent River, Maryland, United States, it is now an exhibit at the Calvert Marine Museum.
Fort Carroll Light is a derelict lighthouse consisting of a short wooden tower on the walls of its namesake fortifications in the Patapsco River.
The Pages Rock Light was a lighthouse located in the York River in the Chesapeake Bay.
Wolf Trap Light is a caisson lighthouse in the Virginia portion of the Chesapeake Bay, about seven and a half miles northeast of New Point Comfort Light. It is listed on the National Register of Historic Places.
New Point Comfort Light is a lighthouse in the Virginia portion of the Chesapeake Bay, United States, off the tip of the Middle Peninsula. Finished in 1804, it is the third-oldest surviving light in the bay, and the tenth-oldest in the United States.
Old Point Comfort Light is a lighthouse located on the grounds of Fort Monroe in the Virginia portion of the Chesapeake Bay. It is the second oldest light in the bay and the oldest still in use. The lighthouse is owned and maintained by the U.S. Coast Guard and is listed on the National Register of Historic Places.
Cape Charles Lighthouse is an octagonal cast iron skeleton tower lighthouse at the mouth of the Chesapeake Bay on Smith Island which was officially removed from service in 2019. It is the tallest lighthouse in Virginia and the second tallest in the United States. This particular tower is the third lighthouse at this location. The first lighthouse at Cape Charles was a 55-foot (17 m) masonry tower completed in 1828. It was quickly deemed inadequate for its important seacoast location due to its low height and poor visibility at sea. It was soon threatened by erosion so in 1864 it was replaced by a 150-foot (46 m) masonry tower built further inland. Located a little more than a mile southwest of the old tower and 600 feet from the shoreline, the impressive 150-foot-tall conical brick tower was similar in appearance to the 1857 Cape May Lighthouse, painted white and topped with a dark brown lantern room. In 1892, a twenty-five-foot red band was painted around the white tower's midsection, about sixty feet up from the base, to make it more visible during the day. By the 1890s, it too was threatened by beach erosion which jetties built to protect it failed to halt, and with the lighthouse now only 300 feet from the ocean and the shoreline eroding at a rate of 37 feet per year it was decided that a third lighthouse needed to be built three quarters of a mile inland.
Thimble Shoal Light is a sparkplug lighthouse in the Virginia portion of Chesapeake Bay, north of the Hampton Roads channel. The third light at this location, it is listed on the National Register of Historic Places.
The Tue Marshes Light was a lighthouse located at the mouth of the York River in the Chesapeake Bay north of Tue Point near the Goodwin Islands.
Smith Point Light is a caisson lighthouse in the Virginia portion of the Chesapeake Bay at the mouth of the Potomac River. It was added to the National Register of Historic Places in 2002.
The Bowlers Rock Light was a lighthouse located in the Rappahannock River in Virginia, United States.
The Jordan Point Light was a lighthouse located on Jordan Point on the James River in Prince George County, Virginia, near the south end of the present Benjamin Harrison Memorial Bridge.
