- Bastettoy Island Prison: Bastettoy Island Prison is a seaside prison in Norway, built in 1982. It is the first ecological prison in the world. It is equipped with solar panels, does not use gasoline, chooses to use waste wood for heating, implements a waste utilization policy, and is self-sufficient in food. In this prison, prisoners can enjoy a lot of freedom.
- San Quentin State Prison: The San Quentin State Prison is located in California, USA. It was founded in 1852. It is an older prison in the area. The prison used to treat prisoners in a cruel manner. Now it is said that the prison is not only poor, but also violent. The problem is very dangerous.
- Boya Prison: Boya Prison is a prison that is absolutely impossible for people to escape. The prison does not restrict the freedom of prisoners. The location surrounded by the sea can also have a good sea view. At present, the prison mainly detains female prisoners. .
- Nairobi Prison: It is said that the living environment of Nairobi Prison is extremely bad. It is the most crowded prison in the world in scale. People are close to others, so even the air is filled with all kinds of stench.
- Petak Island Prison: Petak Island Prison is located in Russia. It is mainly a prison for some notorious criminals in the area. Some basic facilities are not perfect. Each prisoner is detained alone, facing each other alone every day. Walls, such an environment is said to have made many prisoners lose their minds.
- Gudani Prison: Gudani Prison is located in Georgia and is considered to be the most chaotic prison in the world today. It is understood that there are various types of violence in the prison. The number of prisoners in custody can only be described as overcrowded.
- Potala Palace Snow Prison: The Potala Palace Snow Prison is located in the building area just below the Potala Palace. It is collectively called "Snow City" and covers an area of 50,000 square meters. Snow Prison is a place specially used to detain prisoners in Snow Barley, with a total area of 1,050 square meters. The prison room is on the east and the warehouse is on the west. Two dungeons on the north side are dungeons where felons are held, one of which is the notorious "Scorpion Cave".
- Jidalama Central Prison: Jidalama Central Prison is judged to be the most horrible place on the planet. The environment is crowded. Many prisoners are killed by violence, and prisoners will do it. Cannibalism
- Diyarbakir Prison: Diyarbakir Prison is located in Turkey. It was built in 1980. The prisoners are all the most notorious in the area. There are many torture punishments in the prison, and there will be a lot of torture between prisoners and prisoners. There is a very violent threat.
- The end of adx prison: The adx prison is a prison with no sunlight. It is located in the United States and was built in 1994. It is mainly used to detain the prisoners who committed Dandy's profiteering crimes. It is absolutely impossible to escape from this prison.