Lincoln Memorial's hidden 15,000-square-foot undercroft opens to the public after a century underground
Lincoln Memorial's hidden 15,000-square-foot undercroft opens to the public after a century underground

A century-old secret hidden beneath the feet of former President Abraham Lincoln is opening to the public on Thursday, with a new video from the U.S. Department of the Interior teasing some of the nev...
Originally published on World News Guru
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