Symbols of American Freedom These lively and colorful books tell the stories of important places and monuments across the United States that have shaped American history and that symbolize American democracy and freedom. The Gateway Arch The tallest monument in the United States, the Gateway Arch in St. Louis, Missouri, honors the courage and determination of the explorers and pioneers who settled the American West in the 1800s. Volumes in this set: The Alamo; Independence Hall; Ellis Island The Lincoln Memorial; Fort McHenry Mount Rushmore; The Gateway Arch The Statue of Liberty; The Gettysburg Battlefield The Washington Monument.