101. Mitad del Mundo Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Mitad del Mundo (Ingapirca Site, Ecuador) Date: 1981 Format: Image
102. Cuzco from Cerro Pichu Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Cuzco (Peru) Cusco (Peru) Date: 1981 Format: Image
103. Cuzco from Cerro Pichu Collection: Billie Jean Isbell Andean Collection Location: Cuzco (Peru) Cusco (Peru) Date: 1981 Format: Image
104. Cuzco from Cerro Pichu Collection: Billie Jean Isbell Andean Collection Location: Cuzco (Peru) Cusco (Peru) Date: 1981 Format: Image
105. Cuzco from Cerro Pichu Collection: Billie Jean Isbell Andean Collection Location: Cuzco (Peru) Cusco (Peru) Date: 1981 Format: Image
106. Cuzco from Cerro Pichu Collection: Billie Jean Isbell Andean Collection Location: Cuzco (Peru) Cusco (Peru) Date: 1981 Format: Image
107. Torreon Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Machu Picchu Site (Peru) Torreon (Machu Picchu Site, Peru) Date: 1981 Format: Image
108. Machu Picchu Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Machu Picchu Site (Peru) Torreon (Machu Picchu Site, Peru) Date: 1981 Format: Image
109. Machu Picchu, entrance to city Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Machu Picchu Site (Peru) Date: 1981 Format: Image
110. Diagrams of the astronomical tower at Incallacta in Bolivia Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Inkallajta Site (Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1992 Format: Image
