国会議事堂
Regular ceremonies of the emperor with a constitutional basis are the Imperial Investitures "(Shinninshiki)" in the Tokyo Imperial Palace and the Speech from the Throne ceremony in the House of Councillors in the National Diet Building. The latter ceremony opens ordinary and extra sessions of the Diet. Ordinary sessions are opened each January and also after new elections to the House of Representatives. Extra sessions usually convene in the autumn and are opened then.