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 Portugal matching “Guarda, Centro” · Mysteria

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Places in Portugal matching “Guarda, Centro”

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Verified16 Widely accepted0 Contested2 Hypothetical3 Unverified0 Pseudoarchaeology3

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fortified settlement2

“Guarda, Centro”

🇵🇹 Portugal · Megalith

Anta da Pedra da Orca

Neolithic (4000–2000 BCE) · European Neolithic

Anta da Pedra da Orca in Guarda, Centro, Portugal is a Neolithic megalithic monument dating to c. 3500–2500 BCE, built of local stone and associated with Atlantic farming communities.