The Cathedral of Syracuse (Duomo di Siracusa) origins on this site date to prehistory. The great Greek Temple of Athena was built in the 5th century BC. The temple was a Doric edifice with six columns on the short sides and 14 on the long sides. Plato and Athenaeus mention the temple, and the looting of its ornament is mentioned by Cicero, in 70 BC, as one of the crimes of the governor Verres.
The present cathedral was constructed by Saint Bishop Zosimo of Syracuse in the 7th century. The battered Doric columns of the original temple were incorporated in the walls of the current church. They can be seen inside and out. The building was converted into a mosque in 878, then converted back when Norman Roger I of Sicily retook the city in 1085. The roof of the nave is of Norman origin, as well as the mosaics in the apses.
As part of the increased building activity after the 1693 Sicily earthquake, the cathedral was rebuilt and the façade redesigned by architect Andrea Palma in 1725–1753. The style is classified as High Sicilian Baroque, a relatively late example. The double order of Corinthian columns on the facade provide a classic example of carved Acanthus leaves in the capitals. Sculptor Ignazio Marabitti contributed the full-length statues on the facade.
The interior of the church, a nave and two aisles, combine rustic walls and Baroque details. Features include a font with marble basin dating from the 12th or 13th century, a ciborium (an altar canopy) designed by architect Luigi Vanvitelli, and a statue of the Madonna della Neve by Antonello Gagini (1512).
The cathedral of Syracuse is included in a UNESCO World Heritage Site designated in 2005.
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.