The light playing tricks at Sacsayhuayman, Incan military training grounds near Cusco
From horseback, a view of dogs running wild above the hills of Cusco
Somewhere on Day 2's killer, 8-hour hike to Machu Picchu
Trekking through 3 different ecosystems on Day 2 of the hike
Another glorious view of Peru on Day 2
Putting faith in one of several rickety bridges on Day 2
On Day 3, climbing one of the four imposing ladders, on the way to the top of Mt. Putucusi
At last, on Day 4, a view of the llamas grazing the terraces of Machu Picchu
On the grounds of Machu Picchu
An aerial view of Machu Picchu from Wayna Picchu, a nearby mountain
The light playing tricks at Sacsayhuayman, Incan military training grounds near Cusco
From horseback, a view of dogs running wild above the hills of Cusco
Somewhere on Day 2's killer, 8-hour hike to Machu Picchu
Trekking through 3 different ecosystems on Day 2 of the hike
Another glorious view of Peru on Day 2
Putting faith in one of several rickety bridges on Day 2
On Day 3, climbing one of the four imposing ladders, on the way to the top of Mt. Putucusi
At last, on Day 4, a view of the llamas grazing the terraces of Machu Picchu
On the grounds of Machu Picchu
An aerial view of Machu Picchu from Wayna Picchu, a nearby mountain