Machu Picchu.

Terraced areas for growing crops on the side of the mountain at Machu Picchu in Peru.

The Principal Temple at Machu Picchu, located on the Sacred Plaza above the Central Plaza.

The Temple of the Three Windows at Machu Picchu in Peru. In Inca times, religious ceremonies were performed here.

Ruins of a building at Machu Picchu in Peru.

Terraced levels at Machu Picchu had buildings for living, storage and religious ceromonies and areas for the growth of food on them.