One of my attempt is visiting over 100 castles in Japan. This ruin is in Mie pref, is known for great stone walls. (私のある一つの企ては、名城100に選ばれたお城をめぐることです。この城址は石垣で有名。)
Btw, I got new SLR. woohoo!! taken by Pentax k-x which is really lovely camera.

Only stone walls are remain.(石垣だけ残ってます)

Here is also a popular spot for cherry blossoms. unfortunetaly Trees weren't bloom when I went but this tree. tried color setting.(ここはサクラで有名なスポット。私が行ったときは、残念ながらこれしか咲いてなかったです。)