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The ingenious design of Machu Picchu hidden in plain sight

High in the Andes lies Machu Picchu, an Inca masterpiece of stonework and design. Discover the architectural secrets that ...
Archaeology

Secrets of the Seven Wonders

How archaeologists are rediscovering the ancient world's most marvelous monuments The canonical Seven Wonders of the Ancient World were renowned for their size or splendor and—in all cases—the ...