Rosenborg Castle
Christian IV, the most prolific builder among Danish kings, raised Rosenborg in stages between 1606 and 1633 as a private summerhouse in the gardens north of Copenhagen’s ramparts. What began as a pleasure pavilion in red brick and sandstone grew into a three-storey castle in the Dutch-Renaissance manner, with copper spires, turrets and a long ground-floor hall lined with Flemish tapestries.
After the introduction of absolutism in 1660, the castle ceased to be a royal residence and became, in effect, the kingdom’s treasury. Today it houses the Crown Jewels and the regalia of the absolute kings — the lions of solid silver, the throne of narwhal ivory, the great coronation sword and the personal possessions of every Oldenburg monarch from Christian IV to Frederik VII.