Hidden place · Ichinoseki, Japan
Yugen‑do Cave
A 350‑million‑year‑old limestone cave, one of Japan’s oldest, featuring striking rock formations, fossils, and a local rumor that it served as a hideout for…
Hidden place · Ichinoseki, Japan
A 350‑million‑year‑old limestone cave, one of Japan’s oldest, featuring striking rock formations, fossils, and a local rumor that it served as a hideout for…
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