Don't we always wonder this? Yes, ancient ruins with a granola bar hidden in the empty space where the roof carved in. People put less effort into hiding their drugs!
Anyway though, had the pleasure of contributing to the project of the folks over at Heartleaf games. It's a DnD 5e supplement and you check out their Kickstarter over here if you fancy some more furries in your DnD!
https://www.kickstarter.com/projects/heartleafgames/the-delvers-guide-to-beast-world
They also let me go weird with the picture dimensions which i always appreciate.
Link
Eupeptic
The legends say that the ancients immersed loot in a net of havok. After that, it would then fly off to all kinds of strange places with the slightest touch. >_>