The beautifully situated Stjärnsund Manor and estate lies on the point where Alsen joins Lake Vättern. The present building was built between 1798-1801. The interior furnishings, curtains, carpets, chandeliers and mirrors together form one of the best preserved interiors from the mid 19th centry in Sweden. The décor originates from Prince Gustav, "The Singing Prince".
The manor of Strjänsund was established in 1637 by Johan Gabrielsson Oxenstierna. The present castle was built by Olaf Burenstam, who acquired the manor in 1785. His son-in-law sold it to the King Carl XIV Johan. Today Stjärnsund is owned by Vitterhetsakademien, The Royal Institute of Lettets, History and Antiques.
Guided tours of the main living quarters and two wings are given daily. The café is nearby, in what was once the Estate Manager's cottage.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.