St. Jørgensbjerg church is the oldest preserved stone building in Denmark. Built of travertine circa 1100, it may have been inspired by the Roskilde's cathedral predecessor, a travertine church from 1080, built by Bishop Svend Nordmand. The bricked-up north door of the church may also stem from its predecessor from circa 1040, which was investigated in excavations undertaken in 1953-54. If it does, the north door is Denmark's oldest piece of medieval architecture.
The slender billets at the corners and in the middle of the nave are quite unique. Such billets are only found in wooden churches, hence its name 'a fossilized wooden church'. There are many interesting details in the interior of the church. A model of a medieval merchant vessel, a so-called 'kogge', has been engraved in the wall.
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.