You will certainly want to see the one-of-a-kind Otto Wagner Hofpavillon Hietzing. Otto Wagner was commissioned in 1894 with the artistic design of the Wiener Stadtbahn. This was an incredible moment in architectural history, as this was first time where mass transit was designed using the most modern styles. This building and its surrounding paths and bridges are a part of what shapes the beauty of Vienna.
Otto Wagner originally wanted to attract imperial family members to his own creation, a modern station building. Initial designs were made in 1896, adapting Baroque design ideas from the nearby Schönbrunn Palace. Everything is elegant, from the exterior's synthesis of imperial elements, to the marvelous interior design, an icon of early modernity.
When the monarchy came to a close, the pavilion was used as a sculpture studio. It sustained a great deal of damage during the war in 1945 and would later be used as an exhibition space for the Austrian Museum of Social and Economic Affairs. Since 1987 it has been a fundamental branch of the Wien Museum. The pavilion is open on Saturdays and Sundays, and admission is free for everyone on the first Sunday of each month.