They also stated the finding "challenges the conventional belief that human civilization and the ... The builders of the Gunung Padang pyramid, they added, "must have possessed remarkable masonry ...

It is located at Ihuatzio, a remarkably preserved archaeological site that contains one other pyramid, a tower or fortress ... job of archaeologists to study human behavior in times gone by ...

Experts point out that some of the exercises, such as the human pyramid and human tower, are especially dangerous. A human pyramid collapses at a junior high school in Yao City, Osaka in 2015.