About 400 thousand people.

Huancayo is a lively city in a green valley high in the central Andes. It is a busy trading town known for its crafts, music, and warm mountain culture.
Ride one of the highest train lines in the world, shop for handmade crafts at the big Sunday market, and see rocks shaped like a stone forest at Torre Torre.
Local artists carve gourds and weave bright blankets that show scenes of village life.
Strange rock towers at Torre Torre look like a sculpture park made by wind and rain over many years.