Botanical Gardens, Graduate School of Science, the University of Tokyo are research and educational property known as Koishikawa Botanical Garden. It is formerly called as Koishikawa Medicinal Herb Gardens built by Tokugawa Shogunate in 1684, and the oldest botanical garden in Japan. It has a very long history even considered in the worldwide. The site area is 161,588 square meters, having about 4000 kinds of plant using a lowland area, hillside, and ponds.