It takes a mighty big roof to fall in on the Detroit Pistons, the Detroit Lions and Dolly Parton. The Teflon-coated fiberglass roof of the Pontiac Silverdome accomplished all that in a monumental c… ...

A diver examines stones stacked into a pile by ancient miners who extracted ocher pigment at La Mina, a site deep inside a cave in Yucatán, Mexico between 10,000 and 12,000 years ago.

Gold treasures were found in the cave in the 1920's and a gold ring was found during the recent excavation. ... piles of animal bones and bits of what looked like ritual related pottery.

In that sense, diving into gold is not dissimilar from “diving” into a concrete floor. But with gold being granular, it might be possible to break the surface and “swim” if the friction ...