Which ancient structure is the oldest of the Seven Wonders still largely intact?

The Great Pyramid of Giza is the oldest of the traditional Seven Wonders and the only one still largely intact.

It was built in Egypt as the tomb of Pharaoh Khufu during the Fourth Dynasty, probably in the 26th century BCE. The pyramid originally stood about 146.6 metres high, although erosion and the loss of its outer casing reduced its height.

For more than 3,800 years, it was the tallest human-made structure in the world. It was constructed from millions of stone blocks, including limestone and granite, and formed part of a larger funerary complex at Giza.

The Great Pyramid is sometimes confused with the other two major pyramids at Giza. Those were built for Khafre and Menkaure, but only Khufu’s pyramid was one of the Seven Wonders.