The unbroken seal on King Tutankhamun's tomb in 1923. That piece of rope and clay remained entirely untouched for 3,245 years before this photo was taken.

https://lemmy.dbzer0.com/post/64158602

How are the door handles attached, they also look manufactured. Crazy what humans could do such a long time ago.
Some fun facts are that we’ve been using fire to make stone easier to work with for over a hundred thousand years, and we’ve been making complex adhesive mixtures for just as long. 77,000 years ago, people were making bedding from leaves that they (probably, we cant ask them) chose for their mosquito repelent qualities. It really is astounding how much stuff ancient humans did