Masuda no Iwafune
MegalithicAsia
The 'Stone Ship of Masuda' in Asuka, Nara. An 800-ton boat-shaped megalith on a hilltop, precisely carved with grooves and twin square holes. Origin and purpose unknown. Pre-dates the Asuka period's recorded histories.
Look Closer — this site carries open questions: stones heavier than the period's tools could lift; geometry beyond period explanation; stone harder than steel.
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Walkthrough videos (3)
Japan's Mysterious 'Rock Ship' of MasudaDid You Know Discovery
The Mysterious Monoliths of Asuka Nara, JapanAncient Architects
Pre-Historic Mega Structures of Japan (Masuda no Iwafune section)Universe Inside You
Nearby sites
- Sakafune-ishi3 km
- Ishibutai Kofun3 km
- Koichi Kofun Cluster27 km