Welcome to Rosenborg Castle, a red-brick fairy tale rising from the heart of Copenhagen. As you stand before these ornate sandstone decorations and copper-green spires, you are looking at the personal passion project of King Christian the Fourth, one of Denmark’s most famous and ambitious monarchs. Constructed between sixteen hundred and six and sixteen hundred and thirty-four, this castle was originally intended as a modest 'pleasure house' in the countryside, away from the cramped city ramparts.[1] Over nearly thirty years, it evolved into the grand Dutch Renaissance palace you see today.[2] You might notice how slender and lofty it appears; that is because the king kept adding more floors and towers as his ambitions grew. Today, it remains a time capsule of royal history, remarkably preserved as if the kings of old had only just stepped out of the room.