Peru
Saqsaywaman is a massive Inca citadel perched in the hills above Cusco. It's a paradigmatic example of Inca architecture, with enormous stones expertly cut to fit together without mortar.
Peru
A truly impressive ruin of an Inca city, including numerous terraces, an unfinished temple, and irrigation systems.
Peru
The Inca ruins at Pisac are quite impressive. The main city sits on the crest of a hill, with terraces lining the slopes below.