Arlington National Cemetery in Arlington County, Virginia, is a military cemetery in the United States of America, established during the American Civil War on the grounds of Arlington House, formerly the estate of the family of Confederate general Robert E. Lee's wife Mary Anna (Custis) Lee, a great grand-daughter of Martha Washington.

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The Tomb of the Unknowns is a monument dedicated to American service members who have died without their remains being identified.

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The John F. Kennedy Eternal Flame is a presidential memorial at the gravesite of U.S. President John F. Kennedy, in Arlington National Cemetery.

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The Space Shuttle Challenger Memorial was dedicated on May 20, 1986, in memory of the crew of flight STS-51-L, who died during launch on January 28, 1986.

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The Marine Corps War Memorial (also called the Iwo Jima Memorial) is a military memorial statue outside the walls of the Arlington National Cemetery and next to the Netherlands Carillon, in Arlington, Virginia, in the United States.

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The Thomas Jefferson Memorial is a presidential memorial in Washington, D.C. that is dedicated to Thomas Jefferson, an American Founding Father and the third President of the United States.

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The Lincoln Memorial is an American memorial built to honor the 16th President of the United States, Abraham Lincoln.

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The John F. Kennedy Center for the Performing Arts (on the building itself called the John F. Kennedy Memorial Center for the Performing Arts, and commonly referred to as the Kennedy Center) is a performing arts center located on the Potomac River, adjacent to the Watergate complex in Washington, DC.

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The White House is the official residence and principal workplace of the President of the United States.

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The Washington Monument is an obelisk near the west end of the National Mall in Washington, D.C., built to commemorate the first U.S. president, General George Washington.

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The Vietnam Veterans Memorial is a national memorial in Washington, D.C.

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The Korean War Veterans Memorial is located in Washington, D.C.'s West Potomac Park, southeast of the Lincoln Memorial and just south of the Reflecting Pool on the National Mall.

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The United States Holocaust Memorial Museum (USHMM) is the United States' official memorial to the Holocaust.

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The United States Capitol is the meeting place of the United States Congress, the legislature of the federal government of the United States.

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The Supreme Court of the United States is the highest court in the United States.

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The Library of Congress is the research library of the United States Congress, de facto national library of the United States of America, and the oldest federal cultural institution in the United States.

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The National Archives and Records Administration (NARA) is an independent agency of the United States government charged with preserving and documenting government and historical records and with increasing public access to those documents, which comprise the National Archives.

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The Martin Luther King, Jr. Memorial is located in West Potomac Park in Washington, D.C., southwest of the National Mall (but within the larger area commonly referred to as the "National Mall").

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The Franklin Delano Roosevelt Memorial is a presidential memorial dedicated to the memory of U.S. President Franklin Delano Roosevelt and to the era he represents.

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The U.S. National World War II Memorial is a National Memorial dedicated to Americans who served in the armed forces and as civilians during World War II.

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Mount Vernon, located near Alexandria, Virginia, was the plantation home of the first President of the United States, George Washington.

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The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, and licensing activities.

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The National Museum of Natural History is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States.

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The National Gallery of Art and its Sculpture Garden is a national art museum in Washington, D.C., located on the National Mall between 3rd and 9th Streets at Constitution Avenue NW.

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The National Air and Space Museum (NASM) of the Smithsonian Institution holds the largest collection of historic aircraft and spacecraft in the world in 161,145 square feet (14,970.9 m2) of exhibition floor space.

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Congress Hall is a building near the intersection of Chestnut and 6th Streets in Philadelphia, Pennsylvania that served as the seat of the United States Congress from December 6, 1790 to May 14, 1800.

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In this one area, you visit the United States Postal Service Museum, The Franklin Print Shop, and the Franklin Museum.

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Elfreth's Alley is a residential street located in Philadelphia, Pennsylvania.

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The Liberty Bell is an iconic symbol of American independence, located in Philadelphia, Pennsylvania.

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The Betsy Ross House may be where Betsy Ross lived when she may have made the first American Flag.

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Christ Church is an Episcopal church located at 22-26 N. 3rd Street between Market and Arch Streets in the Old City neighborhood of Philadelphia, Pennsylvania.

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Independence Hall is the centerpiece of Independence National Historical Park located in Philadelphia, Pennsylvania, United States, on Chestnut Street between 5th and 6th Streets.

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