Have archaeologists discovered the grave of Alexander the Great?

Could archaeologists have discovered the grave of Alexander the Great?

 

Alexander The Great

 At a site in Greece archaeologists have uncovered what could be the grave of Alexander the Great. The warrior king - who ruled much of the known world in the 4th century BC - was thought to be buried in Egypt. But a few experts now believe otherwise after they uncovered a marble-faced wall 500 metres long and three metres high under an artificial mound, dating from the right time in history. However many believe it will turn out to be the grave of some other important individual.