**Saqsaywaman**: An important giant stone fortress of the Inca Empire, built with massive irregular stones without mortar
**Kenko ruins**: A core Inca sacrificial site featuring underground cave altars used for mummy worship and astronomical rituals, offering insights into Inca beliefs about life and death
**Puka Pukara**: Ruins of an Inca military fortress, featuring watchtowers and defensive structures, offering insight into the peripheral defense system of the Inca capital.