10 Ancient Technologies Scientists Can't Recreate Today

Baalbek is situated in Lebanon and there's one question about it everyone keeps asking: who placed all these massive stones here? It is the site of one of the most mysterious ruins of the Roman Empire. It's a monumental temple that's 2 thousand years old and sits atop three thousand-ton stone blocks. These are the largest building blocks on Earth. Why can't anyone repeat these building technologies? Learn more about your ad choices. Visit megaphone.fm/adchoices