5 Sights in Saint Mary's County, United States (with Map and Images)

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. It is known for its association with ghost stories and has been the subject of paranormal investigations. The lighthouse is located in Point Lookout State Park. It is not open to the public.

Wikipedia: Point Lookout Light (EN)

The Piney Point Lighthouse was built in 1836 located at Piney Point on the Potomac River in Maryland just up the river from the mouth of the Chesapeake Bay. The Coast Guard decommissioned it in 1964 and it has since become a museum. It is known as the Lighthouse of Presidents because several early US Presidents visited or stayed on the grounds.

Wikipedia: Piney Point Light (EN), Heritage Website

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.

Wikipedia: Blakistone Island Light (EN)

German submarine U-1105, a Type VII-C/41 U-boat of Nazi Germany's Kriegsmarine, was built at the Nordseewerke Shipyard, Emden, Germany, and commissioned on 3 June 1944. Oberleutnant zur See Hans-Joachim Schwarz was given command. He would command U-1105 for the remainder of the war.

Wikipedia: German submarine U-1105 (EN), Website

Point No Point Light, located in the Chesapeake Bay off the eponymous point several miles north of the mouth of the Potomac River, was constructed as part of a program to add lighted navigational aids in a thirty-mile stretch of the bay between Cove and Smith Points.

Wikipedia: Point No Point Light (Maryland) (EN)