A masterpiece of Incan engineering, Machu Picchu remains one of the greatest archaeological discoveries.
Hidden in the Sierra Nevada mountains, Ciudad Perdida predates Machu Picchu by centuries.
The spiritual and political center of a pre-Incan civilization, Tiwanaku is a mystery waiting to be unraveled.
One of the oldest civilizations in the Americas, Caral stands as a testament to human ingenuity 5,000 years ago.
Are they ancient art, astronomical calendars, or alien messages? The Nazca Lines remain a puzzle.