![Chavin de Huantar, a Unesco World Heritage site, is about 430km north of Lima, Peru. Reuters](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/UYFRN6AE5UVREQVBO2TVSNRXGM.jpg?smart=true&auth=9ee4d1bb2e58a58909d05ab7779d041c37d2c29d6c18732e2350495f47097506&width=400&height=225)
Chavin de Huantar, a Unesco World Heritage site, is about 430km north of Lima, Peru. Reuters
Chavin de Huantar, a Unesco World Heritage site, is about 430km north of Lima, Peru. Reuters
Archaeologists in Peru find 3,000-year-old tunnel in mountain temple complex
Exploration team used cameras mounted on robots to find hidden passage