While Easter Island is famous for its large heads, these are perhaps more mysterious than those. Explorers found these tablets, but cannot decipher them. It might be the last remnants of the Rongorongo language in history, but no one knows for sure. If you think this is crazy, check out number 5 for another unexplained set of tablets.
The secret base at Groom Lake, Nevada also known as "Area or "Dreamland" has a massive Pyramid, but why? One can only speculate on its purpose but it is reasonable to assume its not just for decoration.
Time and again we come across certain evidences about our past which we turn a blind eye to. We can& explain these without being labeled a crazy conspiracy theorist. Should that scare us from unveiling the truth? Plain truth that is staring hard at.