Yes, these should be stored into your or at least someones time capsule. I love that we today still can't figure out who made them. To me personally i do beleive humans did them a long time ago and then destroyed the records of doing so, but hey i could easily be wrong. Kinda out their question would you slave a bunch of people you didn't know to make you a pyramid and be locked inside so someone 200 years later to come find you?