The Great Pyramid of Giza is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now Cairo, Egypt in Africa, and is the only remaining member of the Seven Wonders of the World. The great pyramid was created to honor the pharaoh Khufu, and many of the smaller pyramids, tombs, and temples were built to honor Khufu's wives and family members. Khufu was the son of King Sneferu, and Queen Hetepheres. Khufu is remembered as a cruel and ruthless pharaoh in later folklore. Khufu had nine sons, one of whom, Djedefra, was his immediate successor. The pyramids of Giza are perhaps the only true rival to the Great Sphinx, when one thinks about Ancient Egypt and its architecture. For centuries the Great Pyramid was completely sealed - its secrets to be revealed when the time was right. In the beginning of the 17th century an intrepid explorer entered the pyramid to measure its passages and chambers. The original name Khafre is the greatest of the three. During the Arabs' excavation of the Pyramid of Khufu, they encountered various boulders and slabs that were used to seal the passages and chambers within the pyramid. They also found hidden doors. This probably fueled the many myths about the Egyptian pyramids being booby-trapped, and where a grave robber who managed to get in would never get out alive. It measures 454.7 ft in height. The bas is 717.5 ft - 11 acres the date of construction was the 4th dynasty 2570 BC and the average weight of individual blocks of Stone was 2.5 tons. There is no evidence that anyone was ever buried in the main chamber. It is the one and only Wonder which does not require a description by early historians and poets. It is the one and only Wonder that does not need speculations concerning its appearance, size, and shape. It is the oldest, yet it is the only surviving of the Seven Ancient Wonders. It is the Great Pyramid of Giza. It is located at the city of Giza, a necropolis of ancient Memphis, and today part of Greater Cairo, Egypt. The great pyramid is believed to have been built over a 20 year period. When Khufu, also known as Cheops, became pharaoh one of his first acts was to curtail the growing power of the priesthood. He "shut up all the temples and forbade sacrifices". As a priest's living came from performing these rituals it is not surprising that Khufu was unpopular with the religious orders. Man fears Time, yet Time fears the Pyramids Arab proverb.