Rengstorff House's educated and living historians will guide guests through the home and gardens on 20-minute tours set for Friday and Saturday nights.
The first tour begins at 7:30 p.m., with the last tour departing at 10 p.m.
Tour tickets are available at www.ticketderby.com. Any remaining tickets will be sold at the door on a first-come, first-served basis, with a price increase for day-of-tour buys.
And on Saturday from noon to 4 p.m., Rengstorff's Halloween celebration is for the whole family and child friendly with a suggested donation of $3.
Costume parade is set for 2 p.m., with seasonally inspired crafts, games and light refreshments.
Located inside Shoreline at Mountain View, the Rengstorff House is surrounded by a sailing lake, wetlands and bird sanctuary, dates to the 1860s and is considered one of the finest examples of Victorian Italianate architecture on the west coast.
For more information, view the the house/museum's web site here.