A view of Mount Pentelikon Quarry — the primary marble source for famous historical sculptors and architects — near Athens, Greece. In the rugged hills that surround Athens, Greece, a single peak yielded much of the stone that for nearly 2,500 years supplied some of history’s most famous sculptors and architects.

That Mt. Pentelikon was the source for such works as the Parthenon was well-known, but did you know that it's marble served as a tombstone for customer Rousseau's grave?