This is an Italianate Victorian house from 1857, which the Aurora Historical Society got from the family's descendants in the 1936. Open 1-4pm for tours on Sundays, with extended hours for some other events (July 4; October for "Death Comes to the Tanner House," additional hours for the winter holidays). Admission is free (donations encouraged). My tour started with being asked to sit down (!) and chat with the head of the historical society in the second parlor while we waited for a docent to free up; don't miss the glass case there with artifacts from the privy dig, which is just what it sounds like.
Many original furnishings; I recommend getting a docent tour if you can; my docent (Bill) pointed out many features I wouldn't have noticed otherwise, such as the cable motif on the glasses in the dining room, commemorating the first intercontinental telegraph cable which meant people could speak with their families in the Old Country. The two music boxes (with giant metal discs) are also worthy of note; the one upstairs works and they'll play it if you ask. The straw matting in the upstairs children's bedroom was apparently common in Victorian houses but I'd never seen it before.
Your tour finishes in the rather florid parlor, whose rather astonishing colors are based on paint drips discovered when they redid the molding and carpet; a sample of the original carpet is displayed on the wall. read more