My sister and I really liked the Ogijima WallAlley by Rikuji Makabe.
These colorful walls were in various corners of the small Ogijima town. I loved how he used rich colors, it made the whole area pop with color. Do you see the silhouette of the trees?
It wasn't an installation that you could look at for hours (like the Memory Bottle), but it was fun finding these colorful walls while we were walking around the island. Every time we would spot this burst of color, we'd jump for joy! And I mean literally :D
Here are some pictures:
PS: Did you know that Ogijima (男木島) is actually pronounced Ogi-SHI-ma? ;D