There’s an old rumor that somewhere in Afghanistan is a reclining buddha (statue of course) a significant fraction of a mile long, which is kinda big. It seems as if something that size would be difficult to miss, so much so that everyone would know someone who’d either seen it or had heard where it was located.
I’ve seen an article or tv documentary on it somewhere. There’s an archeologist who thinks he may have located it, buried many years ago by worshipers who may have wanted to protect it from that era’s Muslims.
He thinks it appears today as a ridge line in the landscape. You might find it with a google search on buried reclining Bhudda.