The Old Kingdom
The answer is in the name, The Great Pyramids of Giza.
It is thought they were built as tombs for the wives of Khufu
This is the pyramid of Khufu also known as the Great Pyramid of Giza or the pyramid of Cheops [his Greek name] and is one of the three pyramids at Giza. It is the only existing Seven Wonders of the Ancient World and the biggest pyramid built in Egypt.
The Third Pyramid being the last of the three great pyramids built at Giza
where were the millions of limestone blocks for the three great pyramids quarried
The answer is in the name, The Great Pyramids of Giza.
It is thought they were built as tombs for the wives of Khufu
The oldest of the three pyramids, the pyramid of Khufu, was built around 2580 BCE. The other two, the pyramids of Khafre and Menkaure, followed soon after.
The three 'great pyramids' of Giza were built during the 4th dynasty. The names of the pyramids are Khufu, Kharfe, and Menkaure.
The pyramids were burial places for various Pharoahs. For a while, each one built a larger one than was already there, therefore, small, medium, and large pyramids were built.
This is the pyramid of Khufu also known as the Great Pyramid of Giza or the pyramid of Cheops [his Greek name] and is one of the three pyramids at Giza. It is the only existing Seven Wonders of the Ancient World and the biggest pyramid built in Egypt.
The Third Pyramid being the last of the three great pyramids built at Giza
Assume you are talking about the three pyramids at Gizeh. They were built for three 4th dynasty pharaohs: Khufu, his son Khafre and grandson Menkure
in Eygypt
The Great Sphinx and the Great Pyramids are in Giza, Egypt.
Three Egyptian Kings.
where were the millions of limestone blocks for the three great pyramids quarried