principal builders of gardens were no longer private individuals, but banks, hotels, universities and government agencies. The Japanese garden became an extension of the landscape architecture with the building. New gardens were designed by landscape architects, and often used modern building materials such as concrete. Some modern Japanese gardens, such as Tōfuku-ji, designed by Mirei Shigemori, were inspired by classical models. Other modern gardens have taken a much more radical approach to the traditions. One example is Awaji Yumebutai, a garden on the island of Awaji, in the Seto Inland Sea of Japan, designed by Tadao Ando. It was built as part of a resort and conference center on a steep slope, where land had been stripped away to make an island for an airport. Garden elements Japanese gardens are distinctive in their symbolism of nature, with traditional Japanese gardens being very different in style from occidental gardens: "Western gardens are typically optimised for visual appeal while Japanese gardens are modelled with spiritual and philosophical ideas in mind." Japanese gardens are conceived as a representation of a natural setting, tying in to Japanese connections between the land and Shinto spiritualism, where spirits are commonly found in nature; as such, Japanese gardens tend to incorporate natural materials, with the aim of creating a space that captures the beauties of nature in a realistic manner. Traditional Japanese gardens can be categorized into three types: (hill gardens), (dry gardens) and gardens (tea gardens). The small space given to create these gardens usually poses a challenge for the gardeners. Due to the absolute importance of the arrangement of natural rocks and trees, finding the right material becomes highly selective. The serenity of a Japanese landscape and the simple but deliberate structures of the Japanese gardens are a unique quality, with the two most important principles of garden design being "scaled reduction and symbolization". Water Japanese gardens always feature water, either physically with a pond or stream, or symbolically, represented by white sand in a dry rock garden. In Buddhist symbolism, water and stone are thought of as yin and yang, two opposites that complement and complete each other. A traditional garden will usually have an irregular-shaped pond or, in larger gardens, two or more ponds connected by a channel or stream, and a cascade, a miniature version of Japan's famous mountain waterfalls. In traditional gardens, the ponds and streams are carefully placed according to