Frederiksborg Castle is a stunning Renaissance castle located in Hillerød, Denmark. Built in the early 17th century by King Christian IV, it is surrounded by beautiful gardens and a large lake. The castle features intricate architecture and is known for its impressive collection of portraits and historical artifacts. Today, Frederiksborg Castle houses the Danish Museum of National History, showcasing Denmark's rich history through various exhibitions. Visitors can explore the grand halls, ornate rooms, and picturesque grounds, making it a popular destination for tourists and history enthusiasts alike.