In Tokyo, there is the State Guest House (Akasaka Palace) that hosts the overseas king and president. The vast building, built as a palace of the then Crown Prince in the early 20th century, has been designated a national treasure. You can tour this palace!
Photos of the State Guest House
Map of the State Guest House
Please refer to the following site for details.
Mahalo wau iā ʻoe e heluhelu ana i ka hopena.
Bon KUROSAWA Ua lōʻihi wau i hana ʻoihana ma ka lunahooponopono luna no Nihon Keizai Shimbun (NIKKEI) a hana i kēia manawa ma ke ʻano he mea kākau pūnaewele kūʻokoʻa. Ma NIKKEI, ʻo wau ka luna Lunahooponopono o ka ʻike i ka moʻomeheu Kepani. E hoʻohua wau i nā mea leʻaleʻa a me nā mea hoihoi e pili ana iā Iapana. E ʻoluʻolu keia 'atikala no ka mea, nui details.