I was curious so I looked around a little bit

Apparently the oldest stone tools found that can be attributed to hominids, are around 3 million years old: https://en.wikipedia.org/wiki/Oldowan.

When only counting Homo sapiens, they have found tools that are around 315.000 years old: https://en.wikipedia.org/wiki/Jebel_Irhoud.

And that's just what we have actually found :)

Also, while we don't have made statues that old, we do have manuports from 2-3 million years ago: https://en.wikipedia.org/wiki/Manuport

Manuports are natural rocks in "funny" shapes, like faces or falluses, which are found back (far) out of place and often in the neighbourhood of other human remnants.