National Museum (Prinsens Palæ, Ny, Vestergade 10, Copenhagen) — The National Museum is located in The Prince’s Palace, which was built by Nicolai Eigtved between 1743 and 1744 for Danish Crown Prince Frederik V and Crown Princess Louise. It is no longer used by the royal family, but the Great Hall still appears elegant enough to fit princes and princesses. It has exhibitions from the Stone Age, the Viking Age, the Middle Ages, the Renaissance and Modern Danish History. The wreck of the longest Viking longship in the world is one of the main attractions here. Admission: DKK 95 (adult), free for children under 18 years old. Hours: 10 am – 5 pm (Tuesday- Sunday). Closed on Mondays.