Within the genus Homo, cranial capacity again doubled from H. habilis through Homo ergaster or H. erectus to Homo heidelbergensis by 0.6 million years ago. The cranial capacity of H. heidelbergensis overlaps with the range found in modern humans.
The original height of the Pyramid was 146.5 m (488 ft), but today it is only 137 m (455 ft) high, the 9 m (33 ft) that is missing is due to the theft of the fine quality white Tura limestone covering, or casing stones, for construction in Cairo. It is still the tallest pyramid.
1 List of Egyptian pyramids-most, if not all, Egyptian pyramids have monoliths over 20 tons, including monolithic roof slabs, plugs and burial vaults, some of which weigh over 100 tons. 2  Nemrud Dagi, Turkey. 3  Palenque, Mexico. 4  The largest stones weigh 12 to 15 tons.