On the temple of Seti the 1st, in Egypt, lies a strange hieroglyph. According to the Von Daniken's and Graham Hancock's of this World, it looks like a helicopter. According to mainstream archeology, a pharaoh's name was carved on the top of the name of another, and when the home improvement crumbled over the centuries, it left something that does look amazingly like a 20th century helicopter with what looks like a submarine nearby.
