World’s oldest pyramid claim points to a 25,000-year mystery scientists say was not man-made

 At nearly 3,000 feet above sea level in West Java, Indonesia, moss-covered stone terraces climb a volcanic hill known as Gunung Padang. The site has long been treated as a sacred place, with five visible terraces and sweeping views of nearby volcanoes.

Then a much bigger claim pushed the hill into global headlines. A 2023 paper in Archaeological Prospection argued that Gunung Padang may hide a pyramid-like structure far older than Egypt’s pyramids. Some layers, the authors proposed, could date back as far as 25,000 years, long before farming and settled civilizations are usually thought to have produced large monuments.

The Claim Beneath the Terraces

The study was led by Danny Hilman Natawidjaja, a geologist associated in the coverage with Indonesia’s national research and innovation agency. His team used ground-penetrating radar, seismic tomography, drill cores, trenching, and radiocarbon dating of organic soil samplesto examine what might lie below the visible stone terraces.

The paper described the site as a multi-layered structure. Its authors argued that the core included massive andesite lava that may have begun as a natural lava hill before being shaped and covered by later construction. They also claimed that the oldest construction element may have come from the last glacial period.

Gunung Padang, located in Cianjur, West Java, Indonesia. Credit: Ade Lukmanul Hakimmm/Shutterstock

That idea is what made the claim so widely discussed. If humans had truly shaped Gunung Padang 25,000 years ago, it would push monumental building far deeper into the past than the accepted timeline allows. The paper argued that this would suggest advanced masonry skills existed before agriculture, a claim that quickly drew attention from readers interested in ancient civilizations and lost-history theories.

Why Archaeologists Challenged the Evidence

The central problem is not whether Gunung Padang is important. It is whether the buried layers prove human construction. Many archaeologists said they do not.

Radiocarbon dating can show how old organic material is, but it does not automatically prove when a monument was built. Soil under a structure can be much older than the structure itself. In this case, critics argued that the old soil samples did not include clear signs of human activity, such as charcoal, bone fragments, tools, or other artifacts.

Flint Dibble, an archaeologist at Cardiff University, told The Guardian that the data did not support the paper’s headline conclusion. He also warned that material moving down a hill can naturally settle into patterns that may look arranged, especially in a volcanic landscape.

Bill Farley, an archaeologist at Southern Connecticut State University, also criticized the interpretation. The issue, in simple terms, is that old ground is not the same thing as old architecture. To show that a buried layer was built by people, researchers usually need strong evidence of working, occupation, or construction. Critics said that standard was not met.

The Retraction Changed the Story

The debate did not end with criticism. In February 2024, the journal retracted the paper, citing methodological concerns and a lack of credible evidence that the underground layers were made by humans.

Natawidjaja has continued to defend the work and invited researchers from around the world to come to Indonesia and study the site. His response framed Gunung Padang as open for further investigation, rather than a closed case.

The controversy also drew attention because Graham Hancock, the British author associated with alternative theories about a lost Ice Age civilization, was credited as a proofreader on the original manuscript. He was not presented as a co-author in the coverage, but his connection increased concern among archaeologists already skeptical of the paper’s conclusions.

What Still Counts as the Oldest Pyramid

The claim matters because it challenges well-known ancient sites. Göbekli Tepe in Türkiye is widely known as one of the oldest monumental sites, with stone monuments linked to the Neolithic period. The Gunung Padang claim would make the Indonesian site more than twice as old.

For pyramids, the accepted record has not moved to Indonesia. Guinness World Records lists the Caral pyramids in Peru and the Djoser Step Pyramid in Egypt in connection with the oldest pyramid record, with dates around 2700 to 2600 BCE. It notes that Gunung Padang is a contender only in a highly contested sense and that more evidence and consensus would be needed before such an early origin could be accepted.

The Step Pyramid of Djoser remains central to the established story of pyramid building. Britannica describes it as the oldest important stone building in Egypt, designed for Djoser by Imhotep around the 26th century BCE, with six stepped tiers rising above the Saqqara necropolis.

Gunung Padang still has real archaeological and cultural value. Indonesia’s cultural heritage system recognizes protected cultural sites, and the visible terraces remain part of West Java’s ancient landscape. What has not been proven is the much larger claim that the hill contains a world’s oldest pyramid dating back 25,000 years.