Heartland of the great Inca empire, Peru has a wealth of historic sites, the most famous being the “Lost City” of Machu Picchu. There are many compelling monuments in the beautiful city of Cusco, the Inca capital sacked by the conquistadors, who built their own churches and mansions on the massive stone foundations of the previous civilization. The Sacred Valley, through which flows the Urubamba River — regarded by the Inca as an earthly equivalent of the Milky Way — is filled with ancient towns, markets and impressive ruins such as the fortress at Ollantaytambo and the fascinating Inca terraces at Moray. Farther south, the Lake Titicaca region offers a rare glimpse of a centuries-old society little influenced by the modern world.