That was actually put to the test, by really thinking hard about it, around 2018, or so. By serious scientists, not van Däniken types, or similar. The conclusi

That was actually put to the test, by really thinking hard about it, around 2018, or so. By serious scientists, not van Däniken types, or similar. The conclusion was that we couldn't tell, between slowly milled between mile-high ice-shields and fluctuations of seawater-level alone. Maybe, just maybe there would be the chance of some monument surviving buried in the center of a 'kraton', but why? Do we build monuments there, now?