The Marion Historical Museum occupies a former 1887 Baptist Church, tucked in the corner of the Marion, Kansas Central Park.  The museum opened as the Marion County Museum in 1961. Its displays include 19th century dresses, needlework, dolls, toys, the first Marion Telephone switchboard, the old wooden Canada post office cabinet with letter cubicles, farm tools, early church record books, and a large display of photographs of families and Marion buildings.

The Marion Historical Museum is operated by the City of Marion. There is a large room with historical and genealogical information and museum curator Cynthia Blount helps people from around the world with their research involving Marion County and Central Kansas.