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Pyramids of Güímar

Location	Güímar, Tenerife, Spain (Canary Islands)
Conventional date	Built about 1848–1864, probably from stones cleared from fields.
Alternative date proposals	Thor Heyerdahl (1990s): Ancient step pyramids linked to trans-oceanic contact [2]
What is measured	19th-century material under the structures; solstice alignments. [1][2]

Six terraced stone structures in an ethnographic park. A case where excavation settled the date.

Claims about this site

Claim	Status	Verdict
Pyramids around the world point to a common lost source	Leading Edge	Open question
The Güímar step pyramids in Tenerife are ancient	Leading Edge	Excavation dates them to the 19th century

Sources

Universidad de La Laguna (2006). 'Pirámides' de Güímar: solsticios, masonería y Egipto antiguo. Tabona 15, Universidad de La Laguna (PDF). https://riull.ull.es/xmlui/bitstream/handle/915/18172/TB_15%2520%2528… data
Instituto de Astrofísica de Canarias, Archaeoastronomy project: Chacona (Güímar) solstice alignments. http://research.iac.es/proyecto/arqueoastronomia/pages/project-overvi… background

Dates are summarised in our own words from the sources listed. Conventional and alternative dates are both reported; "measured" lists only dated or documented findings. Methodology.