Historical bike tour, Oct. 13, 11 a.m., Tait Road commuter parking lot, Trumbull. Historian/author, Sue A. DelBianco will host a historical bike tour from The Pequonnock Rail Trail in Trumbull to Quarry Road. Free. Info: email@example.com.
A Haunting at Mill Hill, Oct. 18 and 25, 7:30 and 9 p.m.; Oct. 19 and 26, 6, 7:30 and 9 p.m., Mill Hill Historic Park, 2 E. Wall St., Norwalk. Net proceeds benefit Norwalk Historical Society's education and cultural programs.Tickets: $15-$20. Info: millhillhaunt.com, norwalkhistoricalsociety.org.