45 Ancient Ruins That Are Even More Stunning Than the Pyramids

19. Tiwanaku – The Cradle of Andean Civilization (Bolivia)

Often overshadowed by Machu Picchu, Tiwanaku is one of South America’s greatest ancient cities. Located near Lake Titicaca in Bolivia, this pre-Inca civilization flourished between 300 and 1000 AD and influenced later Andean cultures, including the Incas. The city's massive stone structures, such as the Gate of the Sun, are adorned with intricate carvings and celestial alignments, indicating a deep understanding of astronomy. The precision-cut stones, some weighing over 100 tons, fit together without mortar, a technique that remains a mystery. Despite its significance, much of Tiwanaku’s history is still unknown, making it one of the most intriguing archaeological sites in the world.