The Ngu Binh Mountain (known as the Royal Screen) and the Perfume River, which runs through the city, give this unique feudal capital an entire setting of great natural beauty as well defining its symbolic importance. The site was chosen for a combination of natural features – hills representing a protective screen in front of the monuments or taking the role of “a blue dragon” to the left and “a white tiger” to the right – which shield the main entrance and prevent the entry of malevolent spirits. Within this landscape, the main features of the city are laid out.