The Incas built an elaborate network of paved roads and bridges, that stretched for a length of 22,530 Km (14,000 miles). The roads allowed them to reach and control each corner of their Empire. The Inca engineers used and improved roads left by earlier cultures, such as the Chimu, Wari and Tiwanaku among others tribes.
The Inca road system includes two main roads, both connecting the north to the south – one along the coast and another along the Andes. The two main roads were connected by a shorter network of roads. Along the coast the road connecting the Gulf of Guayaquil in Ecuador to the Maule River in Chile. The Andean royal road extended along the Andes Mountains, from Quito in Ecuador, through Cajamarca and Cusco, ending near Tucuman, Argentina.