Secession exhibition hall adjacent to the square, Carl it on crown leaves golden dome shape is very eye-catching. Secession museum by Joseph, mariano ORR, built in 1897, is the activity of the Vienna secession, work and the important of secession museum. Historical background at the beginning of secession museum was built in 1897, was the secession of the accumulation point; In the same year, some artists with different views with the traditional academic artists out of the mainstream art group, also organized art community, advocating modelling concise, advocated for straight lines and large light walls and a simple cube for decoration.