Amalienborg Palace is the home of the Danish royal family. The grounds are completely open, so you can walk around the square and catch the changing of the guards every day at 12:00. You can also visit Amalienborg Palace Museum, which offers a glimpse into Danish royal history and showcases a unique collection of artifacts and interiors. With its rich heritage and stunning architecture, it's a must-visit destination for anyone interested in experiencing a piece of Denmark's regal past.