Pyramid in Bosnia?

[Banquo's Ghost]

Very interesting, I was still under the impression Egypt had the oldest pyramids. One interesting thing is that apart from the pyramids in Egypt, most other pyramids seem covered by vegetation, that's why the Egyptian pyramids were discovered first and given so much credit, while in fact they might not be that unique at all, other than in perhaps size?

Absolutely. Also, Egypt was near to the Europeans and their developing interest in archaeology in the 18th century.

Could it even be possible that the Egyptian pyramids were also covered in vegetation once - after all it's claimed that the Sahara desert was a flourishing forest region some thousand years BC so it isn't completely impossible...

Very unlikely. The great pyramids were in fact faced with white marble (and possibly capped with gold) which would have made them a quite amazing sight - but clearly not intended to be hidden with vegetation.

The Sahara has been a desert for a long time, and was savannah before that. Linky. There was a theory bandied about some years ago by a geologist that the Sphinx showed evidence of water erosion, meaning that it would have had to have been built 10,000 years before the accepted date. Critique. If this were true, the likely conditions for vegetal overgrowth might have existed. But then again, why make the pyramid shine white if it will get covered in mould?