America's 11 most endangered historic places
May 31 2019, 08:00
Tourists love to visit the National Mall Tidal Basin in Washington, DC, but few know that the National Park Service site is threatened by rising sea levels and outdated infrastructure.
Tourists love to visit the National Mall Tidal Basin in Washington, DC, but few know that the National Park Service site is threatened by rising sea levels and outdated infrastructure.
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