The Palais can be visited
Palais du Rhin
In Strasbourg, the Palais du Rhin is a residence of German monumental architecture of the late 19th century. It stands on the Place de la République, shaping the cityscape.
History+
Construction of the former Imperial Palace began on March 22, 1884, under the direction of architect Hermann Eggert, to mark the 87th birthday of Emperor Wilhelm I. The project was intended as a symbol of Alsace's permanent affiliation with Germany. After its completion in 1889, the palace was inaugurated by Wilhelm II, who visited the building regularly until 1914. During World War I, it served as a military hospital. In 1920, it received its current name, Palais du Rhin, and became the seat of the Central Commission for Navigation on the Rhine.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Absolute_palais_du_rhin_01.JPG
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 48.5876, 7.7526