Fodor's Expert Review Sun Temple
Chapin Mesa
Indigenous Sight
Free
Although researchers assume it was probably a ceremonial structure, they're unsure of the exact purpose of this complex, which has no doors or windows in most of its chambers. Because the building was not quite half finished when it was left in 1276, some researchers surmise it might have been constructed to stave off whatever disaster caused its builders—and the other inhabitants of Mesa Verde—to leave.