Sacsayhuaman huge, hilltop, Inca fortress built in the 15thC outside Cuzco with zigzag battlements constructed of immense stones, Highlands, Peru

andes mountains world heritage site wall travel destination tourism destination stonework stone south america site scenic sacsayhuaman ruins quechua prehispanic precolumbian peruvian peru monument latin america landmark incan inca immense huge historic place hilltop highland gigantic gateway fortress famous place door destination cuzco battlements archaeological site architecture