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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Widely accepted caves in Spain · Mysteria

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Widely accepted caves in Spain

4 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.

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Verified4 Widely accepted4 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

4 places

palaeolithic to iron age1

🇪🇸 Spain · Cave

Cave of El Soplao

El Soplao (Cantabrian: El Sopláu) is a cave located in the municipalities of Rionansa, Valdáliga and Herrerías in Cantabria, Spain.

≈Accepted

🇪🇸 Spain · Cave

Cave del Valle (Cantabria)

Cave del Valle (Spanish: Cueva del Valle, The Valley's Cave), locally also known as La Viejarrona (Old Girl), is located near El Cerro Village in the municipality of Rasines in Cantabria, northern…

≈Accepted

🇪🇸 Spain · Cave

El Mirón Cave

The El Mirón Cave is a large cave in the upper Asón River valley towards the eastern end of Cantabria in northern Spain, near the border of the Basque country.

≈Accepted

🇪🇸 Spain · Cave

The cave of Chufín is located in the town of Riclones in Rionansa (Cantabria), Spain. Situated at the confluence of the Lamasón and Nansa rivers, several caves ornamented with rock art pock the steep…

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4 places

Cave of El Soplao

Cave del Valle (Cantabria)

El Mirón Cave

Cave of Chufín