The Reichstag building (Reichstagsgebäude) is a historical edifice in Berlin, constructed to house the Imperial Diet of the German Empire. It was opened in 1894 and housed the Diet until 1933, when it was severely damaged in a fire. After World War II, the building fell into disuse; the parliament of the German Democratic Republic met in the Palast der Republik in East Berlin, while the parliament of the Federal Republic of Germany met in the Bundeshaus in Bonn.
In 1894, after ten years of construction, the Reichstag was completed and its dome towered above the city castle. Yet the Parliament building remained and, from that point onwards, it has reflected the turbulence of German history. On 9 November 1918, Deputy Philipp Scheidemann proclaimed from the window the creation of a republic. On 27 February 1933 under mysterious circumstances that still have yet to be explained, the Reichstag caught on fire, destroying the chamber and the dome. The Reichstag fire served as a pretext for the Nazi regime to persecute their political opponents.
After being destroyed in the war, it was rebuilt between 1961 and 1971 in a simplified form without the dome, which was blown up in 1945, according to plans by Paul Baumgarten. After German reunification, the German Bundestag decided to use the building as a seat of Parliament again.
Between 1994 and 1999, the Reichstag was redesigned and expanded by the British architect Sir Norman Foster as a modern Parliament building while retaining its extensive, historical dimensions. The accessible glass dome, which initially generated a lot of controversy, has since become one of the landmarks of Berlin. Since 1999, the German Bundestag has been convening in the Reichstag building.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.