日本でユネスコの世界遺産建築物はいくつありますか？
Japan accepted the UNESCO World Heritage Convention on 30 June 1992. As of July 2018, twenty-two properties have been inscribed on the World Heritage List: seventeen cultural sites and four natural sites. A further eight sites and one site extension have been submitted for future inscription and are currently on the Tentative List as of 2017.
twenty-two