At Peru temple site, archaeologists explore 3,000-year-old 'condor's passageway'
The entrance to the "condor's passageway" was first explored by a Stanford University team using cameras mounted on robots.
The archaeological site of Chavin de Huantar, which is a UNESCO World Heritage site, is seen some 155 miles (250 km) north of Lima July 18, 2008. A museum opened near the site with an exhibition of ceramic pieces and rock sculptures from a culture that flourished around 900 B.C.(photo credit: REUTERS/Enrique Castro-Mendivil (PERU)/File Photo)ByREUTERS
