These Powerful Monuments Will Remind You That Freedom Isn't Free

Dedicated to those who served and sacrificed during the Korean War.

The USS Arizona Memorial marks the resting place of sailors and Marines killed on the battleship during the Japanese surprise attack on Pearl Harbor on Dec. 7, 1941.

Cuyahoga County Soldiers' and Sailors' Monument commemorates Civil War soldiers and sailors. Located in the southeast quadrant of Public Square in downtown Cleveland, it opened July 4, 1894.

The Virginia War Memorial honors all Virginians who have served in the armed forces, from World War II to the present day.

The National World War II Memorial was the first national memorial dedicated to all who served during World War II.

The Tomb of the Unknown Soldier at Arlington National Cemetery, Washington, DC, stands as a symbol for US service members who have died and whose remains are not identified.

The African American Civil War Memorial honors the black soldiers and sailors who served during the Civil War.

The American Civil War Memorial honors the Scots who fought alongside the Union during the Civil War.

Also called the Iwo Jima Memorial, the Marine Corps War Memorial honors Marines who have died for their country. It depicts the raising of the US flag over Iwo Jima during WWII.

Blank dog tags are hung in tribute to fallen service members from the wars in Afghanistan and Iraq.

The "invasion pool" at the National D-Day Memorial features sculptures of soldiers climbing ashore amid intermittent jets of water replicating gunfire.

The Philadelphia Korean War Memorial features the names of more than 600 service members from Pennsylvania who were killed during the conflict.

The Les Braves Omaha Beach Memorial is dedicated to the soldiers who died on D-Day during the Allied invasion of Nazi-occupied France.

With five 20-foot tall concrete panels, the Alaska Veterans Memorial honors all those Alaska veterans who have served and sacrificed in foreign conflicts.

"Morning Soldier" by Thomas Jay Warren and "The Memory Group" by Sarah E. Maloney are dedicated to those who served during the Korean War.

National Memorial Arch at Valley Forge National Historic Park is based on the Arch of Titus in Rome and marks the entrance of the Continental Army into the Valley Forge encampment in the winter of 1777–1778 during the American Revolution.

The Vietnam Veterans Memorial is designed to slice through the soil like a wound and features the names of all those killed during the Vietnam War.

The Vietnam Women's Memorial honors those women who served and sacrificed during the Vietnam War.

Situated near the Vietnam Veterans Memorial, the Three Soldiers sculpture offers a more traditional recognition of the veterans and fallen service members from the Vietnam War.

The World War I Museum and Memorial is a commemoration of those who fought during World War I and home to one of the world's largest artifact collections from the conflict.