The island of Gaddtarmen (Hauensuoli, The Pike´s Gut) off Hanko forms a natural harbour on a sailing route in the east-west direction. Sailors have made more than 600 carvings on the rocks while awaiting favourable winds. The oldest drawings date from the 15th and 16th centuries. Most of the carvings decpict coats of arms of Swedish and Finnish gentry. Probably the most famous carving was made in 1754 by Field Marshal Augustin Ehrensvärd, the originator of Suomenlinna sea fortress.
The site is a unique document relating to the history of the Baltic Sea. It’s added to the tentative list of Unesco World Heritage Site by the National Board of Antiquities.
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.