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The Incas were master builders. They constructed thousands of miles of roads to link all parts of their vast empire.
Officials traveled these roads as the eyes and ears of the Inca ruler. To get news from one end of the empire to the other, the Incas developed a messenger system, using their roads.
The Inca builders also put their skills to work finding ways to grow food on mountain slopes. They excelled at building hanging bridges across mountain gorges and terracing hillsides to grow crops.
