Abbey Mausoleum (Arlington County, Virginia)

The Argonne Cross Memorial is a memorial to American military personnel who died fighting in France during World War I. It was erected on November 13, 1923, and stands in Section 18 of Arlington National Cemetery in Arlington County, Virginia, in the United States.

Henderson Hall is a military installation of the United States Marine Corps (USMC) located in Arlington County, Virginia, near the Pentagon, on the southern edge of the Arlington National Cemetery and next to Fort Myer. Currently, it is part of Joint Base Myer–Henderson Hall. Henderson Hall is named for Brevet Brigadier General Archibald Henderson, the fifth and longest-serving Commandant of the Marine Corps.

Isaac William Littell (5 December 1857 – 1 May 1924) was a United States Army brigadier general. He was awarded the Army Distinguished Service Medal for meritorious and distinguished service during World War I. Specifically, Littell was honored for building the camps and cantonments of the Army raised in the summer of 1917 as chief of the Cantonment Division of the Quartermaster General's Office.

The Spanish–American War Nurses Memorial is a memorial in Arlington National Cemetery in Arlington County, Virginia, in the United States that commemorates those American nurses who died in the Spanish–American War in 1898. The rough-hewn, grey granite memorial was erected by the Order of Spanish–American War Nurses on May 2, 1905. It stands in the southwestern corner of Section 21, where the first Spanish–American War nurses are buried. The memorial should not be confused with the Nurses Memorial. This 8-foot (2.4 m) tall marble figure of a nurse in a nurse's uniform and cape was erected in 1938. It also stands in Section 21, a short distance away. It is screened from the northern part of Section 21 by a copse of trees.

The Miles Mausoleum is located in Section 3 of Arlington National Cemetery. Many members and descendants of the Miles Family (Lieutenant General Nelson Appleton Miles and Major General Sherman Miles) are buried in this mausoleum on a hill in Section 3 of Arlington National Cemetery. It is one of only two mausolea located within the confines of the cemetery. The only other one belongs to the family of General Thomas Crook Sullivan and it is located in Section 1.

The Spanish–American War Memorial is a memorial in Arlington National Cemetery in Arlington County, Virginia, in the United States that commemorates those American military personnel who died in the Spanish–American War. Constructed by the National Society of the Colonial Dames of America and dedicated on May 21, 1902, the memorial consists of a granite column in the center of a small grass-covered plaza. A granite sphere and bronze eagle with outstretched wings stand atop the shaft. The memorial faces west; to its rear across Lawton Avenue is a flagstone terrace on which are placed four cannon, aimed east.

The Navy Annex was a building near the Pentagon in Arlington, Virginia mainly used as offices for the United States Department of the Navy. The facility was also known as Federal Office Building 2. It was demolished in 2013 to make room for an expansion of Arlington National Cemetery and other uses.

The Harry W. Gray House is a historic home located in Arlington, Virginia. It was built in 1881, and is two-story, three bay, "L"-shaped brick free-standing rowhouse dwelling in the Italianate style. It has a standing seam metal shed roof and full-width one-story front porch. It was built by Harry W. Gray (c.1851-1913), a former slave on General Robert E. Lee's Arlington House estate and the son of Selina Gray. It is a rare example of the brick rowhouse in Arlington County.It was listed on the National Register of Historic Places in 2004.

The Rough Riders Memorial is a memorial in Arlington National Cemetery in Arlington County, Virginia, in the United States that commemorates those members of the "Rough Riders" who died in the Spanish–American War in 1898. The grey granite shaft was erected by surviving members of the Rough Riders and their friends and supporters. Although Arlington National Cemetery, a number of secondary sources, and even the bronze plaque on the memorial say the monument was dedicated in 1906 and one source says 1905, contemporary newspaper accounts show the memorial was dedicated on April 12, 1907.

Memorial Amphitheater is an outdoor amphitheater, exhibit hall, and nonsectarian chapel located in Arlington National Cemetery in Arlington County, Virginia, in the United States. Designed in 1913 as a replacement for the older, wooden amphitheater near Arlington House, ground was broken for its construction in March 1915 and it was dedicated in May 1920. In the center of its eastern steps is the Tomb of the Unknowns, dedicated in 1921. It has served as the site for numerous Veterans Day and Memorial Day services, as well as for memorial services and funerals for many individuals.

The USS Maine Mast Memorial is a memorial honoring those who died aboard the USS Maine (ACR-1) on February 15, 1898, after a mysterious explosion destroyed the ship while at anchor in Havana Harbor. It is located in Arlington National Cemetery in Arlington County, Virginia, in the United States. The memorial consists of the main mast of the battleship set atop a circular concrete burial receiving vault designed to resemble a battleship turret. The memorial has occasionally been used to hold the remains of important individuals, such as Lord Lothian and Ignacy Jan Paderewski.

The Tomb of the Unknown Soldier is a historic monument dedicated to deceased U.S. service members whose remains have not been identified. It is located in Arlington National Cemetery in Virginia, United States. The World War I "Unknown" is a recipient of the Medal of Honor, the Victoria Cross, and several other foreign nations' highest service awards. The U.S. Unknowns who were interred are also recipients of the Medal of Honor, presented by U.S. presidents who presided over their funerals. The monument has no officially designated name.