Missouri State Penitentiary, 115 Lafayette Street, Jefferson City, Mo.;  998-6998, http://www.missouripentours.com. Open March through November. The basic two-hour history tour is $12; ghost and overnight tours also offered for $25 and $100, respectively. Children 10 and younger not admitted. Children 14 and younger not allowed on ghost tours.
Texas Prison Museum, 491 State Highway 75 N., Huntsville, Texas;  295-2155, http://www.txprisonmuseum.org. Open 10 a.m.-5 p.m., Mondays-Saturdays; noon-5 p.m., Sundays. Admission, $4 for adults and $2 for children ages 6 to 17. The gift shop sells a variety of wooden and leather goods hand-tooled by inmates.