The Murano Glass Museum (Museo del Vetro) represents the the history of famous local Murano glass. The palace was the residence of the bishops of Torcello. It was originally built in the Gothic style as a patrician's palace. The building became the residence of Bishop Marco Giustinian in 1659. He later bought it and donated it to the Torcello diocese.
The Glass Museum was founded in 1861. The collection of the museum, one of the most complete in the world, ranges from antiquity to 20th century works including realizations by the famous Barovier & Toso glass company and glass textiles designed by Carlo Scarpa in the late thirties.
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.