The founder of Edo, Ota Dokan, wrote a poem at this place. Later Kato Kiyomasa and Ii clan built house in this place. There are dogwood which given by the United States.
Memorial Museum of Parliament
... is built in 1970 for the 80 years' anniversary of the Parliament. This museum displays the system and history of parliament. There is also experiencing room which you can listen the announcement of the prime minister at the congress hole.