High Risk

Chan Chan

Peru • Archaeological Heritage • Threatened by erosion and climate change

History and Importance

Chan Chan is the largest adobe city ever built and was once the capital of the Chimú civilization in northern Peru. The city was constructed around the 9th century and became a major political, cultural, and economic center before the rise of the Inca Empire.

The site contains massive walls, ceremonial areas, courtyards, storage spaces, and decorative carvings made from adobe. Chan Chan’s design and engineering reflect the advanced urban planning of the Chimú people.

Current Threats

Because Chan Chan is built mainly from adobe, it is highly vulnerable to rain, flooding, and erosion. Climate change and strong weather events continue to damage the fragile structures.

Illegal activity, lack of maintenance, and environmental pressure also threaten parts of the site. Some decorative walls and carvings have already suffered significant deterioration over time.

Preservation Efforts

Conservation teams work to protect exposed structures from rainfall, stabilize damaged walls, and monitor environmental conditions.

Preservation projects also focus on improving drainage systems, documenting archaeological remains, and educating visitors about the importance of protecting Chan Chan’s cultural heritage.

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