Which ancient wonder is the only one still largely standing today?

The Great Pyramid of Giza is the only ancient wonder still largely standing today.

Also called the Pyramid of Khufu, it was built in Egypt during the Fourth Dynasty as a tomb for Pharaoh Khufu. Construction is generally dated to the twenty-sixth century BCE, making the monument more than 4,500 years old.

The pyramid originally had a smooth outer casing of white Tura limestone and reached about 146.6 metres. Most of that casing was later removed, and erosion and stone loss reduced its height to roughly 138.5 metres.

The other six wonders were destroyed by earthquakes, fire, war, or gradual decay, and the Hanging Gardens may not even have existed in the form described by later writers. The Great Pyramid was the tallest human-made structure for thousands of years.