Explore the secret 50,000 sq ft Undercroft beneath the Lincoln Memorial, opening to the public this June.
Source: What Lies Beneath: Massive Secret Vault Under Lincoln Memorial to Be Opened to Public for America250
Weltzin Family
Explore the secret 50,000 sq ft Undercroft beneath the Lincoln Memorial, opening to the public this June.
Source: What Lies Beneath: Massive Secret Vault Under Lincoln Memorial to Be Opened to Public for America250