The Palace of the Princes of Monaco (Palais Princier de Monaco) has grand apartments that were built in the 13th century. Rooms that are colourful and decorated with chandeliers and frescoes are quite popular among visitors. Similarly, the Hall of Mirrors and the Red Salon are beautifully designed and loved by visitors. The location of the grand apartments of the palace is located in Monaco-Ville and the apartments are open to the public.