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> RECORD OBS-0353 | status: DEBUNKED | filed 2026-07-31
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Bosnian Pyramid Claims

RecordOBS-0353
CategoryExtraterrestrial/Ancient Aliens
StatusDEBUNKED
SummarySemir Osmanagić claims that natural hills near Visoko, Bosnia and Herzegovina, are the largest human-made ancient pyramids on Earth, built around 12,000 years ago. These claims have been overwhelmingly refuted by scientists, who identify the formations as natural flatirons. Despite the lack of evidence, the site has become a tourist attraction and New Age pilgrimage destination.
OriginThe claims were first made by Semir Osmanagić in 2005, after he visited the Visoko area and announced the discovery of the pyramids.
Claimed
  • The hills near Visoko are human-made pyramids, including the Pyramid of the Sun and the Pyramid of the Moon.
  • The pyramids are approximately 12,000 years old, making them the oldest and largest on Earth.
  • The structures were built by an advanced ancient civilization, possibly connected to Atlantis or extraterrestrial origins.
  • The site contains tunnels and other features that support the pyramid theory.
Evidence / consensusGeologists, archaeologists, and other scientists have demonstrated that the hills are natural geological formations known as flatirons, with no evidence of human construction. The European Association of Archaeologists has condemned the claims as a 'cruel hoax' and expressed concern about damage to genuine archaeological sites.
> OBSERVER NOTE:
A textbook case of pseudoarchaeology: a businessman's unsubstantiated claims override scientific consensus, fueled by nationalism and tourism. The evidence is unambiguous-these are natural hills, not pyramids.

Sources

  1. Bosnian pyramid claims - Wikipedia
  2. The Mystery of Bosnia's Ancient Pyramids

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.