When country singer Johnny Cash sang "Folsom Prison Blues," America became familiar with this rough granite-walled state penitentiary. The prison was built in 1880 to handle the overload from San Quentin. Tours of the prison are not offered; however, the displays in the museum offer a realistic view of what life is like on the inside. Especially frightening is the display of weapons prisoners have made from everyday items. You can purchase crafts and other items made by prisoners. Admission is USD2 for persons age 12 and up.