The Great Pyramid at Giza

The Great Pyramid at Giza is an ancient Egyptian pyramid and the largest of the three Pyramids of Giza, located on a rocky plateau on the west bank of the Nile River in northern Egypt. It was built by Khufu, the second king of Egypt’s 4th dynasty, and was completed in the early 25th century bce. The pyramid originally stood about 482 feet tall, but erosion and the removal of most of the polished limestone casing stones have lowered its height to 449 feet. The base and three sides each measure 755 feet in length, and the pyramid’s sides rise at an angle of 51.87°. The Great Pyramid’s core is made of yellowish limestone blocks, and the inner passages are of finer light-colored limestone. The interior burial chamber is built of huge blocks of granite. Approximately 2.3 million blocks of stone were cut, transported, and assembled to create the 5.75-million-ton structure, which is a masterpiece of technical skill and engineering ability. Visitors can explore the pyramid's internal chambers, including the Queen's Chamber, the Grand Gallery, and the King's Chamber, which is entirely lined and roofed with granite