The Thirteen Chankillo Tower

Chankillo is an ancient monumental complex in the Peruvian coastal desert, found in the Casma-Sechin Oasis in the Ancash Department of Peru.

The site covers about four square kilometres (1.5 square miles) and has been interpreted as a fortified temple, with massive walls, a plaza, a ceremonial-civic area buildings and several other buildings.  Three gates allow access from the interior wall, and 4 gates from the exterior wall.

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