Oka Misanzai Kofun

Fujiidera, Japan

Freely accessible

Public space — no opening hours to check.

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The Oka Misanzai Kofun is a zenpō-kōen-fun (keyhole-shaped burial mound) located in Fujiidera, Japan, dating to around 500 CE. This imperial mausoleum exemplifies the distinctive zenpō-kōen-fun architectural style characteristic of Japan's Kofun period, featuring the characteristic keyhole shape formed by a circular mound joined to a rectangular platform. The site is designated as part of a UNESCO World Heritage Site, recognizing its archaeological and historical significance as a monumental expression of early Japanese imperial burial practices.