The Diet is making efforts to boost its appeal as a Tokyo tourist attraction, and members of the administrative staff who come up with good ideas have been pitching in and acting as tour guides.

Last December, the secretariat in charge of the building held a contest among its employees for the first time to improve the quality of its tours, which had hitherto been conducted exclusively by Diet security officials.

The office of the House of Representatives has prepared a guidebook in seven languages and even made sign language guides available, said Saki Kuroda, 21, a staffer on the team that won the contest.