The Palais du Rhin, the former Kaiserpalast (Imperial palace) is a huge building, it and the surrounding gardens, as well as the neighbouring stables, are an outstanding landmark of 19th-century Prussian architecture. After the Franco-Prussian War, Strasbourg, then German, was faced with the question of an official residence for the Kaiser. The decision was made to create a building symbolic of imperial power, and after much debate, a square Neo-Renaissance design was chosen, remotely inspired by the Palazzo Pitti in Florence. The architect was Hermann Eggert (1844–1920), who had already built, among other things, the Observatory of Strasbourg.
Work began on March 22, 1884 in honour of William I's 87th birthday, and construction took five years. The project received a good deal of criticism, with many questioning the need and use of the building, its appearance, and its price of three million marks. Inaugurated by William II in August 1889, the palace housed the emperor for twelve visits down to 1914.
During the First World War, the building was converted into a military hospital and in 1920 it adopted its current name when the oldest of the European institutions, the Central Commission for Navigation on the Rhine, moved in. In 1923, the palace passed hands to the French state and today houses the department of fine arts and the national furniture of Alsace-Lorraine.
Transformed into the 'Kommandantur' by the Nazis between 1940 and 1945, the building was recaptured by the troops of General Leclerc, who transformed it into their general headquarters. It was there that he wrote his proclamation announcing the realization of his oath at Kufra, proclaiming that he would fight until the French flag flew again over the cathedrals of Strasbourg and Metz.
Threatened with destruction in the 1970s, the palace, classified as monument historique since 1993, also houses the Direction régionale des Affaires culturelles of Alsace.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.