The Geological Museum was built between 1911-1917 and was planned by W.C. Brøgger, former Professor of Geology and first Dean of the University of Oslo. Built of Norwegian Drammen granite, the building style is late art nouveau. On the ground floor can be seen exhibitions of geological processes, and the geological evolution of Norway during 2.5 billion years, with emphasis on the Oslo Region.
Minerals and fossils are displayed on the first floor in two separate rooms. In addition to those objects on display, the Geological Museum’s collections contain research material of more than 2 million fossils, rock specimens and minerals. These collections derive from various expeditions, especially from the Arctic and Antarctic regions, donated by private collectors and from Norwegian industry. Descriptions of a selection of this material is available on the web.