The ancient wonder you're referring to is the Great Pyramid of Giza, which was a monumental tomb built for the Egyptian pharaoh Khufu.

The Great Pyramid of Giza is one of the most iconic ancient wonders and is located near Cairo, Egypt. It was built during the reign of the Pharaoh Khufu (also known as Cheops) of the Fourth Dynasty of the Old Kingdom, around 2580–2560 BCE. The pyramid was constructed as a grand tomb for Khufu, who was a powerful ruler and wanted an impressive monument to serve as his final resting place.
The Great Pyramid was designed as a massive stone structure with a square base and four triangular sides, forming a pyramid shape. It was constructed using limestone and granite blocks, some of which weighed several tons. The precise construction methods used to build the pyramid are still debated by historians and archaeologists, but it's generally believed that a combination of ramps, levers, and manpower was used to move and position the massive stone blocks.
Inside the pyramid, there are chambers and passages, including the King's Chamber and the Queen's Chamber, which were likely used for burial and religious purposes. The construction of the pyramid was a remarkable feat of engineering and architecture, and it stands as a testament to the ingenuity of ancient Egyptian civilization.
The Great Pyramid of Giza is not only a magnificent tomb but also a symbol of the pharaoh's power and the sophisticated civilization that existed in ancient Egypt.