National Diet Building
The National Diet Building contains both houses (House of Representatives and House of Councilors) of the Japanese government.
Completed in 1936, it is located in Nagatachō, Chiyoda, Tokyo.
Nearby is the National Diet Library.
There are other government buildings located in the area, as well as …
… the Japanese Prime Minister’s official residence called Sōri-daijin Kantei or simply Kantei.