Constructed pyramids have long been thought of as one of the peaks of human engineering. Despite the structures standing for ...

Archaeologists in Poland have unearthed 5,500-year-old megalithic tombs, dubbed the "Polish pyramids," in the Wielkopolska ...

A set of huge triangular burial mounds believed to be 5,500 years old has been uncovered, but some 3,000 miles from Egypt.

Archaeologists in Poland uncovered 5,500-year-old mounds, dubbed “Polish pyramids,” containing ancient tombs from an early ...

“Bille” is the first-ever monostable tetrahedron, or a pyramid-like shape with four triangular faces that has one stable ...