Palazzo degli Elefanti ('Elephants Palace') currently houses the Town Hall of Catania. The palace, located on the northern side of the Cathedral square, was begun in 1696 after the devastating earthquake of 1693, its original designed having been commissioned to Giovan Battista Longobardo. The eastern, southern, and western façades were however designed at a later stage by Giovan Battista Vaccarini, while the northern one was by Carmelo Battaglia. The staircase opening to the inner court with four porticoes was added in the late 18th century by Stefano Ittar. In the second floor are paintings by the Sicilian artist Giuseppe Sciuti.
In 1736 Vaccarini erected a statue of an elephant carrying an obelisk in front of the Palazzo. It was probably inspired by Bernini's 1667 Elephant and Obelisk in Rome.
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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.