About 430 thousand people.

Cusco was once the capital of the great Inca Empire and sits high in the Andes mountains. It is the starting point for visits to the famous ruins of Machu Picchu.
Explore ancient Inca stone walls, wander the colorful San Blas neighborhood, and take the train up to the amazing lost city of Machu Picchu.
The Incas built walls of huge stones that fit together so tightly you cannot slip paper between them.
High in the Andes near Cusco you can see the colorful Rainbow Mountain and cute llamas grazing.