Don´t know if you knew about this? I came across it only a while ago

The Moai “heads” on Easter Island have bodies. Because some of the statues are set deep into the ground, and because the heads are disproportionately large, many people tend to think of them as just big heads. But the bodies are there — in many cases, underground. What’s even more interesting — there are petroglyphs (rock markings) that have been preserved below the soil level, where they have been protected from erosion. Michael Massaro