The Colossi of Memnon 

The two giant seated figure statues representing Amenhotep III, usually referred to as "the Colossi of Memnon", are approximately 60 ft high and are carved from Quartzite sandstone.  They are wearing the Nemes head-dress and originally had crowns. 

The weight of each statue is estimated at around 800 tonnes.  The inscriptions indicate that the rock was quarried from Gebel el Ahmar, although analysis indicates that Aswan is more likely.  The statues are in a very poor condition and there is a possibility that they will not survive into the future without significant restoration. They were originally built to guard a temple, that no longer exists, and these days look quite magnificent standing alone by the side of the road. Each statue is seated and rests on a huge granite plinth. Later, the left-hand statue was associated by the Greeks with their god Memnon, son of dawn-goddess Eos, who fought in defense of Troy, hence the current names of the colossi.