Grafton, Taylor County, West Virginia, 26354
The first Mother's Day was celebrated here on May 10, 1908 inspired by Ann Jarvis, who had been active in Mother's Day campaigns for peace and worker's safety and health since end of American Civil War.
Sharpsburg, Washington County, Maryland, 21782
23,000 soldiers were killed, wounded or missing after twelve hours of savage combat on September 17, 1862. The Battle of Antietam ended the Confederate Army of Northern Virginia's first invasion into the North.
According to the U.S. National Park Service, this is where the first attempts at contact between Europeans and Alaskan natives were made by naturalist Georg W. Steller, surgeon aboard Vitus Bering's St. Peter.
Selma, Dallas County, Alabama, 36703
This church was a starting point for the Selma to Montgomery marches in 1965 and played a major role in the events that led to the adoption of the Voting Rights Act of 1965.
Philadelphia, Pennsylvania, 19106
Build in 1770 and owned by oldest trade guild in America, Carpenter's Hall was the site of the First Continental Congress in 1774. Today it is part of Independence National Historical Park.
Dallas, Dallas County, Texas
On November 22, 1963, President John F. Kennedy was shot and killed in Dealey Plaza while riding in an open car. Lee Harvey Oswald fired a rifle from the former Texas School Book Depository building across from the plaza.
Baltimore, Maryland, 21230
During the Battle of Baltimore in 1814, a lawyer named Francis Scott Key was watching the U.S. flag wave over Fort McHenry. He was inspired to write a poem called the "Star-Spangled Banner."
Charleston, South Carolina
The fort was named after General Thomas Sumter, a hero of the American Revolution. On April 12, 1861, at 4:30 a.m., Confederate batteries opened fire on the fort, which started the American Civil War.
Tuscaloosa, Tuscaloosa County, Alabama, 35487
This multi-purpose facility was built in 1939 and is most famous as the site of of the "stand in the schoolhouse door" incident. On June 11, 1963, Governor George C. Wallace blocked the entrance to prevent registration of African Americans.
Gettysburg, Adams County, Pennsylvania
The Battle of Gettysburg was fought here from July 1 to July 3, 1863. On November 19, 1863, Abraham Lincoln delivered his Gettysburg Address at the dedication of the Soldiers' National Cemetery, which was completed in March 1864.
Philadelphia, Pennsylvania, 19106
Originally the home of the Pennsylvania Assembly and Supreme Court during the Colonial Era, the building was called the Pennsylvania State House. The Declaration of Independence and the U.S. Constitution were adopted and signed here.
Washington, District of Columbia
The Lincoln Memorial replicates the form of a Greek Doric temple and contains a large seated sculpture of Abraham Lincoln and inscriptions of two well-known speeches by Lincoln.
Little Rock, Pulaski County, Arkansas
In 1957, nine African-American students, known as the Little Rock Nine, were denied entrance to the school in defiance of the 1954 U.S. Supreme Court ruling ordering integration of public schools.
Lakehurst, New Jersey
Navy Lakehurst, as it is collectively known, occupies 7412 acres in the million-acre Pinelands National Reserve in central New Jersey. It is also the site of the infamous 1937 crash of the Hindenburg.
Birmingham, Jefferson County, Alabama, 35203
Called the First Colored Baptist Church of Birmingham when it was founded in 1873, this was the first black church to organize in Birmingham. In September 1963, the church was the target of a racially-motivated bombing that killed four girls.
Valley Forge, Pennsylvania
Famous as the camp for the Continental Army during the winter of 1777 - 1778, the park contains Washington's Headquarters, several monuments, reconstructed campsites and a visitor center.