National Register of Historic Places

https://www.nps.gov/subjects/nationalregister/database-research.htm

The National Register of Historic Places is maintained by the National Parks Service. To find out if your property is on the National Register and get a copy of the application, you can visit their website. The applications may or may not have the information you need, as requirements for listing have changed over the years.

Or you can visit: https://en.wikipedia.org/wiki/National_Register_of_Historic_Places_listings_in_Boyle_County,_Kentucky