The House of the Black Madonna is a cubist building designed by Josef Gočár. It is currently in use as the Czech Museum of Cubism and includes the Grand Café Orient restaurant on the first floor.
The House of the Black Mother, sometimes referred to as Black Mother of the Lord, was designed and built between 1911 and 1912 on the corner of Celetná Street and Ovocný trh. Josef Gočár built the house as the first example of cubist architecture in Prague, and it remains probably the most celebrated. Even without historical details of the baroque building surrounding it, the House at the Black Madonna maintains the atmosphere of the neighborhood. The house was given its name by the stone sculpture that originally adorned one of the two Baroque buildings on the same lot. After many years altered use in the interwar period and under communist rule, the house was closed in January 2002 and re-opened after extensive restoration in November 2003.
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.