Halden Fengsel prison was opened last by King Harald V and is home to some of Norway's most hardened criminals, including murderers and rapists.
The jail is spread over 75 acres of woodland just outside Oslo and facilities include a sound studio, jogging trails and a two-bedroom house separate from the main facility where convicts can stay with their families during overnight visits.
Guards move around the prison unarmed and often play sports or eat meals with the men they are tasked with watching. Half of the prison staff are women, a policy based on research which shows a female presence induces a less aggressive atmosphere.
In a far cry from the brutalist set up of British or American prisons, there is even a "kitchen laboratory" where inmates can take specialist cooking courses.
Speaking at the opening of the jail last year, governor Are Hoidal said: "In the Norwegian prison system, there's a focus on human rights and respect.
