Calton Hill in central Edinburgh is included in the city's UNESCO World Heritage Site. Views of, and from, the hill are often used in photographs and paintings of the city.
Calton Hill is the headquarters of the Scottish Government, which is based at St Andrew's House, on the steep southern slope of the hill; with the Scottish Parliament Building, and other notable buildings, for example Holyrood Palace, lying near the foot of the hill. The hill is also the location of several iconic monuments and buildings: the National Monument, the Nelson Monument, the Dugald Stewart Monument, the old Royal High School, the Robert Burns Monument, the Political Martyrs' Monument and the City Observatory.
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.