What took us so long? ⏳ Neil deGrasse Tyson points out a mind-blowing fact: The Great Pyramid was the tallest man-made structure on Earth for thousands of years. It wasn't until the Eiffel Tower was built for the Paris Expo that humans finally constructed something taller. That huge gap in time proves that progress isn't a straight line—sometimes, we just stop. 🏗️📉 #NeilDeGrasseTyson #HistoryFacts #Pyramids #EiffelTower #AncientEgypt #Engineering #Architecture #HumanHistory | Hidden Byte