“Tomb of the Unknown Soldier, where an honor guard stands watch 24/7 to symbolize America’s commitment to honoring its fallen heroes.”

Arlington National Cemetery, located across the Potomac River from Washington, D.C., is one of the United States’ most hallowed burial grounds. Established during the Civil War in 1864 on the grounds of Arlington House, the former estate of Confederate General Robert E. Lee, it spans over 600 acres and serves as the final resting place for more than 400,000 active-duty military personnel, veterans, and their families.

The cemetery’s marked with rows of white headstones, memorialize service members who have fought in every U.S. conflict, from the Revolutionary War to recent operations in the Middle East. The grounds also house monuments and memorials, including the iconic Tomb of the Unknown Soldier, where an honor guard stands watch 24/7 to symbolize America’s commitment to honoring its fallen heroes.

Each year, millions of visitors walk its grounds, paying tribute to those who have served. Ceremonies and commemorations occur throughout the year, particularly on Memorial Day and Veterans Day, drawing dignitaries and citizens alike.

Some of the most notable graves include those of President John F. Kennedy, marked by the Eternal Flame, and the space shuttle Challenger crew.

The cemetery’s landscape and monuments remind visitors of the cost of freedom.