The Great Pyramid of Giza has guarded its secrets for more than 4,500 years, yet a cavity hidden just behind its northern ...
More than 4,500 years after it was built, the Great Pyramid of Giza is still surprising scientists. In a discovery announced ...
Many pyramids were known to have capstones at their peak, also known as pyramidions, which were made of limestone, sandstone, basalt or granite. Some may have been covered with plates of copper, gold ...