Emil Wikström's grandson, the celebrated cartoonist Kari Suomalainen, donated most of his drawings and paintings to Visavuori foundation in 1988. Architect Erkki Helamaa designed a new exhibition hall in Visavuori where these drawings could be exhibited. This building was named Kari's Pavilion and was opened in 1990.
The Visavuori foundation has a collection of app. 9000 political cartoons as well as other drawings and paintings by Kari Suomalainen. In the upstairs exhibition hall is an exhibition of Kari's political cartoons featuring a different theme every year.
The downstairs exhibition hall also hosts visiting exhibitions by other artists.