The Old Mill Museum is housed in a three-story Greek Revival mill built in 1848 as a wood grist mill that operated until 1910, when longtime owner R.B. Davis sold it to the Dundee Hydraulic Power Company for generating Dundee's electricity; the building was abandoned in 1925, then purchased and completely rebuilt by Henry Ford in 1930, who installed a Leffler turbine and G.E. generator to power his new factory as his tenth Village Industry. Its exhibits trace Dundee's past to the present, including the Ford Village Industries and Dundee's automotive-related factories, a recreated portion of the Macon Reservation from 1807 to 1827 portraying Potawatomi life, farming and small-town life in the 19th century, and period rooms such as a general store, kitchen, parlor, office, school room, bedroom, and weaving room, along with an 1859 wall map of Monroe County.