One of the big surprises in the most busy district in Tokyo is the Shinjuku Gyoen Garden. This is a real oasis amidst this craziness. The garden is one of the most popular cherry blossom viewing parks in Tokyo thanks to hundreds of cherry trees but it is also home to more than 20,000 trees from all over the world. Trees are manicured by hand. There is also a large pond, formal English and French gardens and several smaller ponds. A walk though this park is indeed very relaxing and immediately takes you back into the old days. The park was once home of a wealthy family during the Edo period (starting around 1600) and was declared a public park after WWII.