Archaeologists Excavated a Pyramid and Found 2,400-Year-Old Puppets That Look Hauntingly Alive Study shows how long Social Security, $1.5M nest egg would last in 50 states ...

The most enigmatic of sculptures, the Sphinx was carved from a single block of limestone left over in the quarry used to build the Pyramids. Scholars believe it was sculpted about 4,600 years ago ...