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redhousebythebog t1_jac9vkk wrote

Even today, some people have lost their driveway and walkways to overgrowth, and fallen leaves. https://youtu.be/FEI6mUmOTaI

That stuff turns to soil. Sooner or later, your Machu Picchu is covered into jungle.

Good location (waterways, trade routes) and some laziness will have builders building on top of what was once there

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inexister OP t1_jae2nn2 wrote

That's a great example of natural disasters like hurricanes adding to the debris. If people like that youtuber were around throughout history nothing would get buried!

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Interesting-Fish6065 t1_jaeu4ek wrote

“Could a plot of land theoretically be maintained and and kept free of debris for thousands of years?”

The Pantheon in Rome is an example of this actually happening. Since this great pagan temple was converted to a church, it was maintained. If I understand correctly, it was originally on the top a hill. Now you feel sort of like you’re walking down into a hole when you go to see it.

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