Flutterby™! : Excavating to the underworld

Hidden tunnel could lead to Mayan 'entrance to the underworld'. And archaeologists are going to excavate it.

Last November, they explored two underground passageways leading from a smaller pyramid at Chichen Itza, known as the Ossuary. They had hoped the passageways would lead beneath El Castillo, but discovered the Maya had intentionally sealed them off with piles of stone.

"The Maya blocked things a lot," said de Anda. "In a cave that's important they seal it forever."

Forever, or until a group of determined archaeologists comes along.

Yeah, have these people never seen an archeology movie?

Also, those people who are trying to design "keep away" iconology good for ten thousand years for nuclear waste dumps might want to look at what the Maya culture did as a "how not to".