Which ancient wonder was the oldest entry on the traditional Greek list of Seven Wonders?

The Great Pyramid of Giza was the oldest entry on the traditional Greek list of the Seven Wonders.

Construction of the pyramid is generally dated to the 26th century BC, during the reign of Pharaoh Khufu. The other wonders were built much later, mostly between the 6th and 3rd centuries BC.

The list was created by Greek-speaking writers who celebrated remarkable monuments around the Mediterranean and the Near East. It was not a single official list issued by one authority, but the Great Pyramid consistently occupied a special place because of its age and scale.

Its survival also distinguishes it from the other wonders. Earthquakes, fires, wars and long-term weathering destroyed the remaining six, while the Great Pyramid remains substantially intact at Giza.