It took 10 years and $252 million to built the world's most humane prison Halden Fengsel, Norway with a capacity of 252 inmate.
The prison was designed by Erik Møller Architects and received its first inmates March 1, 2010 but was officially opened on April 8 by the Norwegian King Harald V.
A cell includes amenities such as a television, a refrigerator, unbarred vertical windows that let in more light, and designer furniture. Prisoners share kitchens and living rooms every 10–12 cells, jogging trails, and a sound studio. There are cooking and music classes offered.
Half the guards are women and guards are typically unarmed because guns "[create] unnecessary intimidation and social distance".
Prisoners receive questionnaires that ask how their prison experience can be improved.
The prison has its own recording studio, medical center and hundreds of paintings on the wall, that cost more than $1 million.

It is regarded as 'World's Nicest Prison' or 'World's Most Humane Prison'.

People say that life in prison is tough. But not in this one. I'm thinking some homeless people will commit crime(s) to lodge, sorry get sentenced at Halden Prison.
Take a look.