The House of Museums accommodates the Museum of Nature
and the historical museum
of Olten as well as the archeological museum
of the canton of Solothurn. The museums are owned by the city and the canton, respectively. They work in close collaboration but are independent as far as their collections, exhibitions, and educational services.
The main thematic interest of the House of Museums focuses on the archeology within the canton of Solothurn, the history of the city of Olten and the canton from their beginnings up to the present day, as well as on the natural history and biodiversity on a local, regional, and cantonal level.