This master thesis discusses shops and department stores of Fellner and Helmer in the Austro-Hungarian Empire. First, the international aspects of department stores are presented and then the cultural conditions are examined. The work focuses on the history and the development of department stores in the Austro-Hungarian Empire. Furthermore, the Viennese shopping streets, the markets and shopping arcades are examined. The development of the Viennese shopping streets are equally important for the development of department stores as the infrastructure of water supply, public transport and the discovery of new materials such as iron. This made a totally different style of a façade facing possible. Curtain wall and shop windows came into use.The company Thonet, famous for their chairs, and the Viennese family Rothberger were very successful and motivators for a different style of presenting, creating and selling. In the interior the stairs became important. During the baroque time the representation on stage was quite essential. The stairs were now available to consumers of all different social classes. It became important to see and to be seen.For the shops the façade of the building had two parts. The ground and the first floor were characterized by curtain wall, glass technology, and a molding is the transition to the upstairs apartments and bureaus. In contrast, the newly developed department stores used all floors for sale, employees? buffets and technical equipment. The Austrian development is presented with examples from Vienna and Graz. In the Austrian-Hungarian Empire there are a few examples shown like Prague and Budapest. The Viennese architects Ferdinand Fellner and Hermann Helmer became famous for their theater buildings throughout the Austro-Hungarian Empire. Their department stores are not as famous, but just as innovative as their theaters and therefore the in depth analysis of their department stores is justified.