5. La Sante Prison
La Sante Prison is located in Paris, France. The jail is notorious for its brutality, and many inmates have committed suicide rather than serve their sentences there. A total of 124 inmates committed suicide in 1999.
The prison is so violent that the inmates are only allowed to leave their cells for four hours a day.
The jail system also generates a hierarchical structure in which some prisoners are more strong than others and the conditions for the weaker prisoners are deteriorating.