Rosenborg Castle in Copenhagen was originally built in the early 17th century by King Christian IV, one of Denmark’s most famous and ambitious monarchs. Initially designed as a summer residence, the castle was constructed in the Dutch Renaissance style and completed around 1624. It reflects Christian IV’s desire to display royal grandeur and modern European tastes of the time. Although it was used as a royal residence only until around 1710, Rosenborg remained significant to the Danish monarchy. Over time, it evolved into a kind of royal time capsule, eventually opening to the public as a museum housing royal artifacts. The castle has witnessed centuries of change, standing through shifts in royal power, wars, and the development of the modern Danish state, all while maintaining its historical essence.

The Royal Treasury at Rosenborg is one of its biggest attractions today. It showcases Denmark’s regal wealth, with items collected over centuries, including ornate swords, jewelry, and ceremonial objects that tell a story of monarchy, opulence, and heritage. Deep within the treasury lies the Danish Crown Jewels, dazzling and securely protected, including sparkling tiaras and symbolic regalia still used on state occasions.

Among the crown jewels is the crown of King Christian V, crafted in 1671. It's a masterpiece of baroque craftsmanship, made of gold and adorned with precious stones, symbolizing the monarchy's authority and divine right to rule.