- The goal is for young people to think a little more outside the box.

That you do not just read books and learn in a traditional way, said teacher Emelie Olsson.

The school has invited classes in grades five to eight to visit them.

A total of twenty classes from other schools have visited.

In addition, 800-900 visitors from the public have also come.

Sunday was the last day to visit the event.

Follow into the tunnel in the video.