There are 12 cultural heritage and 4 natural heritage sites in Japan

UNESCO is a program that catalogs, names and conserves sites of outstanding cultural or natural importance to the common heritage of humanity. Japan has currently 12 cultural heritage and 4 natural heritage sites.
This is the list of UNESCO world heritage sites in Japan.

Hiraizumi – Temples, Gardens and Archaeological Sites Representing the Buddhist Pure Land
hiraizumi
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Shrines and Temples of Nikko
nikko
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Historic Villages of Shirakawa-go and Gokayama

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Historic Monuments of Ancient Kyoto

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Buddhist Monuments in the Hōryū-ji Area
 Midori Nakazawa
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Historic Monuments of Ancient Nara

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Sacred Sites and Pilgrimage Routes in the Kii Mountain Range
kii mountain
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Himeji-jo castle
 from （公社）姫路観光コンベンションビューロー
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Hiroshima Peace Memorial (Genbaku Dome)
 from 広島県
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Itsukushima Shinto Shrine
 from 広島県
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Iwami Ginzan Silver Mine and its Cultural Landscape
iwami ginzan
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Gusuku Sites and Related Properties of the Kingdom of Ryukyu
 from 沖縄観光コンベンションビューロー
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■natural heritage■
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Shiretoko
shiretoko
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Shirakami-Sanchi

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Ogasawara Islands
ogasawara
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Yakushima