Constructed in 1926 as a memorial to the soldiers who died in World War I, the Liberty Memorial is also the home of the National World War I Museum. It was designed by the winner of the design competition, Harold Van Buren Magonigle.

The Liberty Memorial was a product of the forming of the Memorial Association that was designed to commemorate and celebrate those who died fighting for their country in the First World War. The group was formed by various prominent figures, including Robert Long, a philanthropist and Lumber baron. The group made the building of the memorial possible through donations and fund raising campaigns.

The Liberty Memorial was declared as a National Historic Landmark in 2006, the same year that the museum opened.