Though not as centrally located or as easy to reach as Tokyo's other famous gardens, this one is a must for fans of traditional Japanese gardens and is probably my favorite. It was created in 1702 by a trusted confidante of the shogun, who began as a page and rose to the highest rank as a feudal lord. During the Meiji Era, the founder of Mitsubishi took it over for his second residence and later donated it to the city. What I like most about the garden is that it's dominated by a pond in its center, complete with islands and islets, viewing hills, and strolling paths around its perimeter, providing enchanting views. The garden is especially famous for its changing maple leaves in autumn. Because it takes some effort to reach, you'll probably want to enjoy at least an hour here.