High in the Peruvian mountains, above the clouds, stands the enchanting city of Machu Picchu. It was built by the Incas in roughly 1450 AD and only rediscovered in 1911. In the interim, it was wiped out by smallpox and civil war within 100 years. Spanish conquistadors never found Machu Picchu, so the city remains comparatively in a good condition. Watch to learn more about this fascinating travel destination.