The Great Pyramid of Giza is the last remaining Wonder of the Ancient World and mystery still surrounds it to this day. The square-based pyramid, a shape which usually has four sides, is the most ...

A pyramid with a triangular base is a triangle-based pyramid. A tetrahedron is a triangular pyramid with all equilateral triangle faces. A pyramid with a square base is a square-based pyramid.

Father and daughter archaeologists Miles and Nora Holden (Denis O’Hare and Ashley Hinshaw) discover and excavate a unique triangular-based pyramid in the Egyptian desert that predates the ...

THE GREAT PYRAMID was digitally reconstructed to resemble what it would have looked like shortly after construction 4,000 years ago, transforming into a "perfect white triangle".

Archaeologists have begun digging for what they think might be a pyramid hidden beneath a hill in Bosnia. Known as Visocica, the 650m (2,120ft) triangular mound, overlooking Visoko, has long been ...