All Pictures from Wikipedia, Viator Travels, and Ruthasa.com
The Ollantaytambo Fortress
The Ollantaytambo Fortress in Cusco, Peru
Macchu Picchu
Macchu Picchu near Cusco, Peru
The 12 Cornered Stone of Cusco
The 12 Cornered Stone a marvel of Inca engerneering and architecture
Cusco, Peru
The Historic City of Cusco, Peru
Lake Titikaka
Location of the Agricultural Terraces
The Three Windowed Temple of Macchu Picchu
The best example of trapezoidal stone work on Inca buildings
Temple of Coricancha
Holiest place for Inca people. Good example of trapezoidal doorways with plumb lip on inner trapeziod