Machu Picchu was built without wheels or iron tools
The Inca Empire's Machu Picchu, built in the 15th century, showcases extraordinary engineering feats achieved without wheels or iron tools, relying on human ingenuity and basic materials.
Imagine building a city high in the Andes mountains without modern construction tools! That's exactly what the Inca did with Machu Picchu around 1450. This legendary citadel was crafted using only bronze chisels, stone hammers, and immense human effort.
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