21. Monolito Ponce, Tiwanaku Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Tiwanaku Site (Bolivia) Titicaca Lake Region (Peru and Bolivia) Tiahuanaco Site (Bolivia) Tiahuanacu Site (Bolivia) Tiwanacu Site (Bolivia)Tiahuanaku Site (Bolivia) Date: 1993 Format: Image
22. Gateway of the Sun Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Tiwanaku Site (Bolivia) Tiahuanaco Site (Bolivia) Tiahuanacu Site (Bolivia) Tiwanacu Site (Bolivia)Tiahuanaku Site (Bolivia) Date: 1992 Format: Image
23. Cruz Escalonada, Tiwanaku Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Tiwanaku Site (Bolivia) Titicaca Lake Region (Peru and Bolivia) Tiahuanaco Site (Bolivia) Tiahuanacu Site (Bolivia) Tiwanacu Site (Bolivia)Tiahuanaku Site (Bolivia) Date: 1992 Format: Image
24. Waka diagrams : Inca designs Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Cuzco (Peru) Cusco (Peru) Date: 1992 Format: Image
25. Astronomical wall Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Inkallajta Site (Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1992 Format: Image
26. Cornell students on top of astronomical wall Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Inkallajta Site (Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1993 Format: Image
27. Cornell students on astronomical wall Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Inkallajta Site (Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1993 Format: Image
28. Torreon Incallacta Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Inkallajta Site (Bolivia) Titicaca Lake Region (Peru and Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1992 Format: Image
29. Torreon Incallacta Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Inkallajta Site (Bolivia) Titicaca Lake Region (Peru and Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1992 Format: Image
30. Students among ruins Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Inkallajta Site (Bolivia) Inkallacta Site (Bolivia) Incallacta Site (Bolivia) Inkallaqta Site (Bolivia)Incallaqta Site (Bolivia) Date: 1992 Format: Image