Rikugi-en (六義園 ) is a Tokyo metropolitan park in Bunkyō-ku. The name Rikugi-en means Garden of the Six Principles of Poetry which comes from the idea of the six elements in waka poetry while en means garden or park. The park consists of a small pond, trees, and a hill. The traditional Japanese garden within the park is a tourist attraction.
The construction of the park took place between 1695 and 1702 and was headed by Yanagisawa Yoshiyasu by permission of the fifth Tokugawa shōgunTokugawa Tsunayoshi and is a typical example of a garden from the Edo period. After the death of Yanagisawa it was neglected. The founder of Mitsubishi, Iwasaki Yatarō bought the garden in 1878 and restored it.
In 1938, it was donated to the Tokyo City government. It was specified as a special place of scenic beauty (特別名勝 tokubetsu meishō) by the Japanese government in 1953.
en.wikipedia.org/wiki/Rikugi-en 