Lincoln Memorial’s Hidden Undercroft Opens After a Century
For the first time in 104 years, the cavernous 15,000-square-foot undercroft beneath the Lincoln Memorial has opened to the public, transforming a long-hidden structural chamber into a world-class museum space. Located directly beneath the iconic statue of Abraham Lincoln on the National Mall in Washington, D.C., the newly unveiled exhibit offers visitors an unprecedented look at the engineering, history, and cultural significance of one of America’s most revered monuments.
A Century-Old Secret Revealed
The undercroft — the structural foundation space beneath the memorial — has sat vacant and inaccessible since the Lincoln Memorial was dedicated in May 1922. Described as resembling a “two-story shopping mall,” the space is supported by a grid of 122 massive concrete pillars that bear the weight of the 38,000-ton monument above. According to Fox News, the project was 10 years in the making, with construction officially beginning in 2023.
The project cost approximately $69 to $74 million, funded through a public-private partnership. The federal government contributed $26 million, while the National Park Foundation raised $45.5 million — including $38.7 million from private donors such as philanthropist David M. Rubenstein, Kenneth C. Griffin, and the John L. Nau III Foundation, as reported by the Trust for the National Mall.
What Visitors Will Find
The undercroft museum features interactive physical displays, multimedia video presentations, and a bookstore. Among its most significant artifacts are original copies of the Emancipation Proclamation and the 13th Amendment, both bearing Abraham Lincoln’s signature. Visitors can also see historical tools from the 1920s construction and authentic graffiti left behind by the original workers who built the memorial.
The exhibits trace the Lincoln Memorial’s evolution into what Julie Moore, Vice President of Communications for the Trust for the National Mall, called America’s “civic stage.” Key moments highlighted include Marian Anderson’s historic 1939 Easter Sunday concert on the memorial steps — after she was barred from performing at Constitution Hall due to her race — and Martin Luther King Jr.’s 1963 “I Have a Dream” speech during the March on Washington.
“You walk up today, you look at the statue, you look at the speeches,” Mike Litterst, spokesperson for National Mall Operations at the National Park Service, told USA Today. “But you don’t understand the symbolism unless you have a really good guidebook with you or take the time. Now, with the museum, we’re going to point those features out.”
A New Perspective on a National Icon
Secretary of the Interior Doug Burgum hailed the opening as an opportunity to deepen public engagement with American history. “Brought to life through partnership with the National Park Foundation, this new exhibit space beneath the Lincoln Memorial creates fresh opportunities for visitors to explore the life and legacy of Abraham Lincoln,” Burgum said. He noted that the project aligns with President Trump’s call to honor the country’s history and founding ideals as the nation approaches its 250th anniversary in 2026.
Jeff Reinbold, President and CEO of the National Park Foundation, described the museum as “a testament to the power of partnership.” Philanthropist David Rubenstein, a primary donor, emphasized the importance of historical awareness, stating: “You can’t really be a great country if you don’t really honor your history and understand your history.”
Planning Your Visit
Admission to the undercroft is free, but timed-entry tickets are required. Advance reservations can be made up to 30 days in advance through Recreation.gov or by calling 877-444-6777. Each reservation allows up to six tickets. Same-day walk-up tickets are available starting at 8:45 a.m. daily at the Korean War Veterans Memorial kiosk on a first-come, first-served basis.
The project also includes significant accessibility improvements, including upgraded elevator systems, new restrooms, and an expanded bookstore — enhancements that benefit all visitors to the Lincoln Memorial, not just those exploring the undercroft.
What This Means for the National Mall
The opening of the undercroft adds a major new cultural attraction to the National Mall just ahead of America’s 250th anniversary celebrations, when Washington, D.C., is expected to see peak tourism. By transforming a previously hidden utilitarian space into an educational center, the project deepens public understanding of both the memorial’s construction and its role in American history.
With over 8 million visitors annually, the Lincoln Memorial remains one of the nation’s most-visited sites. The undercroft now offers those millions of visitors a chance to stand beneath the feet of history — and see the foundation upon which a nation’s story was built.
The Lincoln Memorial Undercroft is now open daily. For tickets and more information, visit the National Park Service website.