The True Pyramid
The true pyramid is
a natural development and improvement on the step pyramid. The first true
pyramids were introduced in at the beginning of the 4th Dynasty. The structure
of a True Pyramid is virtually the same as a step pyramid. Packing blocks
are stacked until the dimensions were right, and then finishing blocks
(usually limestone) were the last touch. The aesthetics are much more
pleasing than the step pyramid, but the construction isn't really that
different.