The Great Pyramid of Khufu (4th dynasty, 2551-2528 BC) consists of over 2.25 million stone blocks—of many tons each. The "King’s chamber inside was made from red granite blocks weighing over 25 tons that were transported from Aswan, 500 miles away and then there were highly polished white limestone casing blocks (slant-faced but flat topped) that originally covered the outside. It must have been quite a sight in the sunlight. It is believed that mortar was used to evenly place the casing stones but a massive earthquake in 1303 loosened them and they slide down. Many were removed and used to build mosques and fortresses in the area — check out the Alabaster Mosque in Cairo.
Gary Brookins and Susie MacNelly
June 10, 2017