Cusco is a popular destination for tourists, because of (it) unique place in the history of South America. Cusco was the capital city of the Inca Empire which was the most (power) in South America until the 1500s.There are two (especial) interesting things to admire about the Inca civilisation.first is the roads and paths they built (connect) their important cities. These Inca roads (make) up of two north-south highways and many small roads crossing the mountains east west. The roads were for Inca soldiers and their (official). Second, the Incas built wonderful cities full of (amaze) architecture-but there were no markets in these cities. One of the interesting questions of history is the Incas lived without shopping!