Vigeland Park is a huge park in which to stroll and browse the sculptures of Vigeland - both bronze and stone – which are overwhelming in their beauty and size. The children I was with were climbing all over the sculptures at the top of the stairs, near the monolith crawling with naked stone bodies! What a wonderful experience. Ideal in summer, but lovely in winter too.
Right in the centre of Oslo;
www.visitoslo.com/Vigeland-Sculpture-Park/