As rainfall increased, the lake eventually overflowed, causing a major flood that carved a 150 km-long valley into the desert floor,'' explains Sébastien Castelltort, professor of earth surface ...

Carved from the natural limestone of Giza, the sphinx has disintegrated over the years, entire pieces dropping off to the desert floor below. It is not known to have chambers inside, like those ...

As rainfall increased, the lake eventually overflowed, causing a major flood that carved a 150 km-long valley into the desert floor,’’ explains Sébastien Castelltort, professor of earth surface ...