The Atlanta Preservation Center's month-long deep dive into Atlanta's historic mansions, hidden secrets, and a bordello or ...

An accidental discovery is shedding new light on a vital piece of American history.

A hidden passageway at Manhattan’s Merchant’s House Museum may be New York City’s earliest Underground Railroad site.

The Octagon House in Fond du Lac was built in 1856 and is one of the few remaining examples of its kind in Wisconsin. Secret tunnels and rooms fueled rumors of a connection to the Underground Railroad ...

Beneath Paris’ grand boulevard lies a hidden history filled with buried secrets, ancient passageways, and forgotten worlds. For adventurous travelers and history enthusiasts alike, these underground ...