Rosenborg Castle

This guide to Rosenborg Castle in Copenhagen traces the throne built between 1662 and 1671 from spiraled narwhal tusks, sold across Europe for centuries as unicorn horn. It follows Denmark's turn to absolute monarchy in 1660, the silver lions modeled on Solomon's throne, and the run of coronations held on that ivory seat until 1840. Christian IV, who built the castle as his retreat, died in his bedchamber here in 1648.