Ciudad Perdida, or "The Lost City," is an ancient archaeological site located in the Sierra Nevada mountains of Colombia. Believed to have been founded around 800 AD by the Tairona civilization, it features a series of terraces, plazas, and stone pathways. The site was rediscovered in 1972 and is now a popular destination for hikers and history enthusiasts. The journey to Ciudad Perdida involves a multi-day trek through dense jungle, showcasing the region's rich biodiversity. The site is significant for its cultural heritage and offers insights into the lives of the Tairona people, who thrived in this area long before the arrival of Europeans.