Ishi no Hōden is a 500–700-ton block carved from bedrock, apparently hovering above a shrine pond that records say has never dried. Surveys and LiDAR point to the late Kofun period, making it roughly 1,400 years old. Its likely unfinished stone chamber has a chiseled nub, leaving its original purpose intriguingly unclear. 🪨
Ishi no Hōden Megalith: 500-700 ton unfinished stone in never-drying pond

Key facts
- Carved directly from bedrock, weighing between 500 and 700 tons depending on survey
- Sits inside a shrine pond that, according to shrine records, has never dried up
- Stone appears to hover above the water line
- Archaeological surveys and LiDAR scanning indicate it most likely dates to the late Kofun period
- Believed to be an unfinished stone chamber with a chiseled nub jutting off one side
- Approximately 1,400 years old
Site mentioned
Sources
Ishi no Hōden | Assassin's Creed Wiki - Fandomassassinscreed.fandom.com
Ishi no Hōden is a megalithic monument that is part of Ōshiko Jinja, a Shinto shrine,[1] in eastern Kakogawa Estuary in Harima, Japan.
Ishi no Hōden | ExploreHereexplorehere.app
Ishi no Hōden is an enigmatic megalithic monument in Takasago, Hyōgo Prefecture, within the grounds of Ōshiko Jinja. Cut from tuff and weighing about 500 ...
Ishi no Hōden - Wikipediaen.wikipedia.org
The Ishi no Hōden (石の宝殿 ) is a megalithic monument located in the grounds of the Ōshiko Jinja (生石神社 ), a Shinto shrine located in the city of ...
Ishi no Hoden a Mystery Object 1 360 Panorama - Japan - 360Cities360cities.net
This is a mysterious boulder called "Ishi no Hoden". "no" means "of", "hoden" means "heirloom". why they built a shrine to worship in 8th century.
Ishinohōden Kofunen.wikipedia.org
The Ishinohōden Kofun is a Kofun period burial mound, located in the Uchiage Motomachi neighborhood of the city of Neyagawa, Osaka in the Kansai region of ...
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