The Kyu Shiba Rikyu Garden is a precious Japanese garden made in the Edo period (1600/1603 - 1868) around 340 years ago. You can see the influence of abroad in for instance "The bank of West Lake" modeled after the West Lake in China. From above, it looks like a miniature garden placed in between the buildings. The sight of the flowers in full bloom from season to season is also beautiful.
Source: Tokyo Metropolitan Park Association

Josiah Conder is a British architecture who made many western architectural style buildings in Japan. The former Iwasaki Family House is also a building designed by him. The garden inside the premises is a unique garden with a mixture of Japanese and western styles.
Source: Tokyo Metropolitan Park Association

It's a metropolitan garden designated as a Tokyo Metropolitan Place of Scenic Beauty. There are several water-worn boulders collected from all over Japan that were placed in the garden by Yataro Iwasaki (1835 - 1885) during the Meiji period (1968-1912) . The dry waterfalls, which represent flowing waterfalls and the flowing of water, in addition to the picturesque pine trees are both must-sees.
Source: Tokyo Metropolitan Park Association

The Hamarikyu Gardens are known as the Japanese gardens that were once loved by the Tokugawa Shogun (de facto military ruler) family. It is known that the Shogun enjoyed falconry here. The seawater pond inside the garden is a rare pond because it changes its appearance around the flow of tide drawn in from Tokyo Bay.
Source: Tokyo Metropolitan Park Association

Koishikawa Korakuen garden is a garden with strong influences from China. The stroll garden with a central pond in its center is modeled after famous places in China and Japan. the scenery is cleverly modeled after the picturesque lakes, mountains, rivers and country sides of various places,
Source: Tokyo Metropolitan Park Association