National Diet Building

Groups of up to 10 people can enter the House of Councillors wing without prior reservations. To visit the lower house in the building, a House of Representatives member is required as an escort, and prior arrangements are necessary. For groups of more than 10, reservations are always required. A free one-hour tour takes place only when the Diet is not in session, and English guides are not always available. The National Diet Building is open from 9 a.m. to 5 p.m. and can be reached via a short walk from the Nagata-Cho Station on Tokyo Metro Subway.