In this view of Machu Picchu you can see how far down the mountain the citadel extended. When I look at this photo I always wonder how long it took the Incas just to flatten the mountain down and create the plateau....
In this view of Machu Picchu you can see how far down the mountain the citadel extended. When I look at this photo I always wonder how long it took the Incas just to flatten the mountain down and create the plateau....