12. The Quarry Group
Here rock used for the citadel was extracted. Without metal tools or wheels, the Incas poured water into rock cracks during the day, which froze at night, expanding to naturally fracture the granite stones.
Here rock used for the citadel was extracted. Without metal tools or wheels, the Incas poured water into rock cracks during the day, which froze at night, expanding to naturally fracture the granite stones.
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