Archaeologists have confirmed there are remains of a building over 80 square meters in size adjacent to the Sanxingdui Ruins. The experts have sized up the shape of this building and named it "F1." The front image of F1 shows the building is rectangular, with a width of about eight meters and a length of about 10 meters.

Experts said such a layout is consistent with the sacrificial pit already found, and it is very likely that this building was a part of an architectural group that also included similar structures discovered nearby.