I visited Sankeien Garden in early March 2007, a bit too early for the Sakura (cherry blossoms). However, as you can see, it is a very pretty garden, and contains many historic buildings 400-500 year old structures, the oldest of which is the pagoda, built in 1457.

The following was blatantly plagarized from the City of Yokohama's website, http://www.city.yokohama.jp/me/naka/contents/english/life/recreation/sankeien.html

Sankeien Garden is likely the most noted place even in all of Yokohama's popular sites. This authentic ... (more)