2,500 year-old network of interconnected cities discovered within the Amazon rainforest

Kunguints site, Upano Valley, Ecuador. Complexes of rectangular platforms are arranged around low squares and distributed along wide dug streets. (CREDIT: Stéphen Rostain and Lidar A. Dorison) In a groundbreaking discovery that has left the scientific community astounded, a study spanning more than two decades has unearthed compelling evidence that an ancient site deep within the heart of the Amazon rainforest once thrived as a sprawling network of interconnected cities, dating back over 2,500 y

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