The old Kronhuset (the Crown House) behind the Gustav Adolf Square is one of the oldest buildings in Gothenburg. It was built in 1642-1654 as a storehouse for military uniforms and other military equipment. Now it is a living craft center in historic buildings.
Around Kronhuset is Kronhusbodarna (the Crown House Sheds).The west wing served as carriage storage and warehouse, and was built around 1750 after the previous wooden buildings around Kronhuset burned down. The east wing was built in 1759 for artillery weapon smiths, turners and saddlers. Sweden was at this time mobilizing for war with Denmark and the demande for a warehouse in Gothenburg was therefore high.
Kronhuset was built in Dutch style, and apart from the brick walls and ceiling, it's made entirely of wood. It is six stories high and the ground floor has no supporting pillars, which means that you could more easily move around guns and vehicles.
When the parliament convened in Gothenburg Kronhuset also functioned as parliament house. Nowadays the neighborhood is a vibrant craft centre. In the small sheds the are shops for glassworks, chocolate, candy, furniture, clocks, pottery and leather. There is also a popular cafe and bakery.
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.