Rosenborg Castle is situated at the center of the Danish capital, Copenhagen. It was built in 1606 in the Dutch Renaissance style and went through several expansions to arrive at its present condition in 1624. It was used by Danish regents as a royal residence until around 1710 and was opened to the public in 1838. Today, it is popular with tourists who flock to the castle to view the Danish Crown Regalia. How many people visit the Rosenborg Castle Garden every year? Discuss