The Memorial to the Murdered Jews of Europe, also known as the Holocaust Memorial is dedicated to the Jewish victims of the Holocaust, designed by architect Peter Eisenman and engineer Buro Happold. It consists of a 19,000 m2 site covered with 2,711 concrete slabs arranged in a grid pattern on a sloping field. They are organized in rows, 54 of them going north-south, and 87 heading east-west at right angles but set slightly askew. An attached underground 'Place of Information' holds the names of all known Jewish Holocaust victims, obtained from the Israeli museum Yad Vashem.
Building began on April 1, 2003 and was finished on December 15, 2004. It was inaugurated on May 10, 2005, sixty years after the end of World War II, and opened to the public two days later.
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.