What happens when the Sphinx is gone?

While watching a documentary on the Sphinx I can not help but wonder what will happen when the Sphinx is completely gone.  Someday the stone that makes up the Sphinx will be worn away from weather and people and all that will be left is dust.  I guess it depends on how into conspiracy theory you are or how much Call of Cthulhu you have played as to how concerned you are by all the poking around that goes on with these ancient wonders.

I, myself, are rather concerned for one.  It only seems natural that they will someday open a door that was closed for a darn good reason and then where will we all be??

Until then the whole thought leads me to dark places in Call of Cthulhu or dark but still funny places in Horror Rules.  Perhaps I have found my inspiration for a Horror Rules adventure after all.  Dark places like the switching of the magnetic poles and the unknown havoc that will cause, perhaps north and south swap places even over the equator.  Or perhaps the world goes through a great change and magic returns to the world (that assumes you believe it was once here).  Or when it is all dust a homing beacon for an alien race will appear and begin broadcasting, we can only hope they are helpful like last time…

Your thoughts?