While on our visit to Japan we visited the Yasukuni Shrine in Tokyo. In all the years I lived in Tokyo and Japan (18 all told) I never visted Yasukuni. Yasukuni is the controversial shrine dedicated to the soldiers of Japan and therefore associated with the fascist nationalists that want to restore the military imperial structure of Japan from WWII.
Every year there are protests surrounding the annual visit by the Prime Minister of Japan to the shrine which large parts of the nation and Japan's neighbors have problems with - particularly those that were treated atrociously by the Japanese in WWII. South Korea is a perfect example of one such country.