The Providence, Rhode Island Old Mill is now on the National Register of Historic Places.  The reason: 

its contributions to the history of American industry, the commission said. Woolens and worsteds were spun and woven at the site by local textile workers for more than 60 years.

Of course, the "dark satanic mills" of the industrial age are now all but a distant memory in the Northeast U.S.  Now occupying the structure:  The Cathedral Art Metal Company, a manufacturer of religious jewelry.