I don’t know why but it reminds me the Lascaux cave painting story. It was discovered by 18 year-old boy and his dog in 1940 and because of the magnificent beauty of the painting, he decided to protect the cave by guarding it with his friends.
Then the cave painting was disclosed to the public for a while, but soon closed again as too many people breathed in there and the moist damaged the painting with mold, moss and stuff like that.
Then, mankind decided to make a replica of the cace right next to the original cave for those who wants to see the painting.
I guess preserving a painting is one of the most human-like thing. The fact that 18 year-old boy devoted himself to guard the cave for years and people agreed to never see the original painting to protect it says something about our act of leaving a trace of past (or shadow) and passing it on as long as possible.