Ancient Buildings That Physically SHOULDN'T EXIST (We Still Can't Explain Them)

Some ancient structures are so advanced they challenge everything we know about human history. This video explores several of the most baffling engineering feats that simply shouldn't exist. --- 00:00 - Intro 00:50 - Coral Castle (The 100lb man who moved 1,100 tons alone) 02:44 - The Great Pyramid of Giza (Precision that exceeds modern standards) 04:49 - Göbekli Tepe (The 12,000-year-old temple that predates agriculture) 06:38 - Nan Madol (The city built on an ocean lagoon) 08:28 - Sacsayhuamán (Genius-level seismic engineering with 130-ton stones) Shelf of Supporting Cast: 10:00 - The Baalbek Megaliths (Stones heavier than the world's largest crane can lift) 10:57 - The Longyou Caves (A sports-stadium-sized structure with no written record) 11:53 - Newgrange (The 5,000-year-old light show) 13:12 - Conclusion: What are we missing?