The Danish National Exhibition of 1909 or The National Exhibition in Aarhus 1909 was an industry, crafts and culture exhibition held in Aarhus, Denmark in 1909 from 18 May to 3 October. The exhibition displayed some 1850 individual works by architects, artists, craftsmen and businesses and attracted 650.000 visitors. The project was a large undertaking for the city with long-lasting effects on cultural institutions and short-term economic problems. The exhibition fairgrounds was named The white City based on the architectural expression chosen by the leading architect Anton Rosen.