This post is a link to some really incredible pictures about the damage associated with the magnitude 9.0 earthquake in Japan on March 11, 2011. The associated tsunami created waves up to 30-feet high. It was the largest earthquake on record (since 1900) and the largest to hit Japan.
In order to see the before and after pictures of the same spot, all you have to do is drag your mouse back and forth over the image.
The link is HERE