Rosalia Lombardo, is an Italian child mummy. She died in 1920 at the age of two. She's almost perfectly preserved even though she's been dead for 93 years. She still has all her organs, skin, and even eyes. It's due to temperature change (they think).
Easter Island Stones actually have bodies unearthed in excavation. I thought it was a joke, but went to snopes and it's true. The mystery of how they got here and who made them still exists. Definitely want to visit Easter Island.