58K views · 1.4K reactions | The moai statues of Easter Island had a special design feature that may have allowed them to "walk." | NOVA l PBS | Facebook

Did you know that the largest of the Moai statues on Easter Island was never removed from its quarry? This colossal monolith would have stood 72 feet tall (more than twice the height of any of the Moai statues) and weighed hundreds of tons - making it heavier than two Boeing 737 planes. Just as we find with the unfinished obelisk at Aswan, Egypt, the massive stele in Yangshan, China, or the largest of the megalithic blocks from Baalbek, Lebanon, these civilizations reached the height of their so