Seriously, name one pharaoh that was buried in a pyramid. They found nothing in the pyramids apart from rocks. The pharaohs are buried in the valley of the Kings where the royal tombs are located.
For a jungle based EP like you describe, the gameplay will be mainly rabbithole type because there is no way EA will add tons of animals to rescue and photograph or interact with in any way. If we're lucky we might get a parakeet or a lizard. There has to be something else to do in the jungle, for it to be interesting. If they add another ruins to explore, how is that different from the ruins in Windenberg or Henford for example? All historical sites are protected, some more than others, but Stonehenge, while protected, it's not sacred. How could it be sacred when people don't even know who built it or for what purpose? For all we know it could have been a really large bathroom with a nice view when it was first built. When ancient ruins are discovered, archaeologists first need to find out what they are, who made them and for what purpose, and when they have an understanding of the place they put any artefacts up in a museum and people can come visit and find out about that place. Of course the majority of people will not get to touch the really fragile stuff, but rocks in general aren't fragile, that's why we get to find them thousands of years later and wonder about who carved them and built with them.