4.5 stars. Rosenborg Castle has a Renaissance style and was built for King Christian IV in the…read moreearly 1600s.
Visitors may purchase tickets, preferably online, to tour the castle. In the interior of the castle, visitors may see Christian IV's bedchamber and other rooms, the Treasury with the Danish crown jewels, etcetera. I unfortunately did not have tickets to tour the inside of the castle, but based on online photos, I really wish that I had bought tickets so I could see the historic, fancy rooms.
I did, however, spend much time walking around the exterior of the castle. The architecture looked gorgeous. Then I walked through the garden, for which I wrote a separate Yelp review, and then I saw the moat with fish and the drawbridge leading to the castle. I recommend that tourists visit this castle.