GO THERE! Chalk it up!

Everybody knows about the Pyramids in Egypt but there are plenty of natural wonders to explore as well. Twenty-eight miles north of the village of Farafra lies the Sahara el Beyda, or White Desert, with its crazy chalk rock formations throughout, caused by sandstorms and low-level wind erosion.
-and frumpy schoolteachers who maintain stockpiles for their blackboards :)