National Park Service, Mississippi.
In 1955, 14-year-old Emmett Till traveled to Money, Mississippi, to visit relatives. He was kidnapped, tortured, and murdered after reportedly whistling at a white woman. His mother, Mamie Till-Mobley, insisted on an open-casket funeral near their hometown of Chicago. Her brave decision let the world see the racist violence inflicted upon her son and set the Civil Rights Movement into motion.
Directions are available at nps.gov/till/planyourvisit/directions.htm.