At the time there would have been no other way of building them.
Big blocks of stone that were hundreds of ton in weight each. Limestone blocks
The Egyptians.
Its obviously the pyramids of Egypt.
The limestone quarry where they mined the stone for the pyramids had to be relatively close to the pyramids (they could not move the blocks far), and the nearest good stone to be quarried was to be found between the pyramids and the Nile River.
they were step pyramids built out of stone
Blocks are individual pieces of stone or other materials that are used in construction. Pyramids were built using blocks in ancient times because it was the most practical method available at the time. Today, modern construction techniques such as concrete pouring and prefabrication have replaced the need for individual blocks in pyramid construction.
what could have been some issues when building the pyramids?
The eariest pyramids were built of stone but in later years mud bricks cased in stone was used.
they were built form stone
Large stone blocks carved out of quarries by slaves. They would then wait for the flood season to put the blocks on boats and transfer them to the building location where the Pyramid was to be erected.
chicken nuggets
The earlier pyramids built in the Old kingdom including the Great Pyramid were built from limestone and granite blocks. In the middle kingdom they were made from bricks that where made out of mud with an outer casing of stone.