Hello Noyhauser -- thanks for the reply! I am going on a chartered tour. Luckily, the tour covers the regions and sites I most want to see, such as Toyota City, Hiroshima, and the cities of Tokyo, Kyoto and Osaka. I'd really like to see the Imperial Palace in Tokyo, as well as the Diet Building. I wonder if the Diet will be in session during my planned visit next April. Do you live in Japan? If not, have you visited often? Thank you.