The Alexandrian Old Town Alexandria, Autograph Collection

Arlington National Cemetery, in Arlington County, Virginia is a military cemetery in the United States, established during the American Civil War on the grounds of Arlington House, formerly the estate of the family of Robert E. Lee's wife Mary Anna (Custis) Lee, a descendant of Martha Washington. The cemetery is situated directly across the Potomac River from Washington, D.C. and near The Pentagon. It is served by the Arlington Cemetery station on the Blue Line of the Washington Metro system. More than 300,000 people are buried in an area of 624 acres (2.53 km2). Veterans and military casualties from every one of the nation's wars are interred in the cemetery, from the American Civil War through the military actions in Afghanistan and Iraq. Pre-Civil War dead were reinterred after 1900. Arlington National Cemetery and United States Soldiers' and Airmen's Home National Cemetery are administered by the Department of the Army. The other National Cemeteries are administered by the Department of Veterans Affairs or by the National Park Service. Arlington House (Custis-Lee Mansion) and its grounds are administered by the National Park Service as a memorial to Lee.

The Kennedy Center, located on 17 acres overlooking the Potomac River in Washington, D.C., is America's living memorial to President Kennedy as well as the nation's busiest arts facility. Touring Kennedy Center productions and its television, radio, and Internet broadcasts reach more than 40 million people around the world each year. As part of the Kennedy Center's Performing Arts for Everyone program, more than 400 free performances are offered each year featuring international, national, and local artists. These include daily 6 p.m. concerts on the Millennium Stage—now in its 16th year—which are streamed live over the Internet and digitally archived on Kennedy-Center.org.

Every president since John Adams has occupied the White House, and the history of this building extends far beyond the construction of its walls. From the Ground Floor Corridor rooms, transformed from their early use as service areas, to the State Floor rooms, where countless leaders and dignitaries have been entertained, the White House is both the home of the President of the United States his family and a museum of American history. The White House is a place where history continues to unfold.

Mount Vernon is the most popular historic estate in America and is open 365 days a year. Over 80 million people have visited Mount Vernon since 1860, when the estate was officially opened to the public. Mount Vernon welcomes an average of one million guests each year. The estate, gardens and farm of Mount Vernon totaled some 8,000 acres in the 18th century. Today, nearly 500 acres of this historic property have been preserved along the banks of the Potomac River. Guests can see Washington’s mansion and other original structures. The estate also includes the tomb of George and Martha Washington, a memorial dedicated to the slaves who lived and worked on the estate, the Ford Orientation Center, and the Donald W. Reynolds Museum and Education Center which includes 25 theaters and galleries.