Cocev Kamen is a hilltop cave site of volcanic origin near the town of Kratovo. Objects (bone fossils) discovered near the cave suggest human presence since the Paleolithic. Authors agree that the site served as a gathering point for sacrificial rituals from the Neolithic, during the Bronze Age, throughout antiquity until the Middle Ages as clarified by an abundance of pottery shards, stone (flint) tools and bone fragments unearthed from the surrounding areas. Several caves and rock shelters are decorated with red figurative art work. Comparison with similar sites in Bulgaria and Italy suggests that the paintings are indeed prehistoric.
Debated remains the notion that Cocev Kamen has also been used as an (astronomical) observatory.
References: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.