The Inca road system was the most extensive and advanced transportation system in pre-Columbian South America. It was at least 40,000 kilometres long (25,000 mi). Only 25% of the system remains visible today https://t.co/LPMZ9SoNaS pic.twitter.com/fBuGjfqrxd
— Massimo (@Rainmaker1973) August 20, 2020
Monday, September 14, 2020
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