Castle d'Eivissa, also known as Ibiza Castle, stands atop Puig de Vila. Its history goes back to the Middle Ages and the Moorish era. Currently, the partially restored complex is surrounded by thick walls, which are a reconstruction of the Renaissance fortifications.
The two defensive elements of the old fortress have been best preserved to the present day. The first is the Baluarte de Sant Jaume bastion, where you can see an exhibition of weapons used to defend the walls of Ibiza. The second is Baluarte de Sant Pere, which houses an exhibition devoted to the history of the castle and its subsequent extensions.
Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.