As the team went to work cleaning the monument, the ancient pyramid was revealed. [In Photos: The Seven Ancient Wonders of the World] Built of sandstone blocks and clay mortar, it had been ...

As the team went to work cleaning the monument, the ancient pyramid was revealed. [In Photos: The Seven Ancient Wonders of the World] Built of sandstone blocks and clay mortar, it had been ...

No matter how big the pyramid needs to be ... can select their preferred size and place down all the blocks in a square. Chiseled sandstone, cut sandstone, red sandstone or regular sandstone ...

Many pyramids were known to have capstones at their peak, also known as pyramidions, which were made of limestone, sandstone ... pyramid would have gleamed in the sun. The limestone casing blocks ...

An Egyptian renovation that will see a pyramid clad in granite blocks has been likened to 'straightening the Tower of Pisa' by experts. Work at Egypt's Menkaure pyramid at Giza shown in a video ...

The Al Naslaa Rock Formation is a landmark in the Saudi Arabian desert formed of two big blocks of sandstone separated by a mysterious, pencil-thin gap. The gap is almost perfectly straight and ...