An atlas of Earth’s mysterious places — megaliths, pyramids, lost and sunken cities — with the evidence shown plainly: what is verified, what is contested, and what is still unknown.

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Places in Japan matching “Akita Prefecture, Kazuno City, Towada–Oyu district, Manza/Naka plain at foot of Towada caldera” · Mysteria

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Places in Japan matching “Akita Prefecture, Kazuno City, Towada–Oyu district, Manza/Naka plain at foot of Towada caldera”

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Verified71 Widely accepted4 Contested1 Hypothetical0 Unverified0 Pseudoarchaeology2

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“Akita Prefecture, Kazuno City, Towada–Oyu district, Manza/Naka plain at foot of Towada caldera”🇯🇵 Japan Clear all

✓VerifiedUNESCO

🇯🇵 Japan · Megalith

Oyu Stone Circles

Late Jomon 2000–1500 BCE · Jomon Late

Twin Late Jomon double-stone circles (2000–1500 BCE) — Manza (46 m dia) and Nonakado (42 m dia) placed either side of prefectural road at Oyu, Kazuno, each concentric with sundial-like 2.1 m central…