Cano Crust ales ( Colombia ) Caño Cristales is a Colombian river located in the Serrania de la Macarena province of Meta. The river is commonly called "The River of Five Colors" or "The Liquid Rainbow," and is referred to as the most beautiful river in the world due to its striking colors. The river appears in many hues–including yellow, green, blue, black, and especially red–which are caused by the Macarenia clavigera (Podostemaceae) at the bottom of the river.
Santa Marta, Colombia -- La Ciudad Perdida (The Lost City). Hidden (literally) in the crevices of northern Colombia’s Santa Marta Sierra Nevada mountain range, La Ciudad Perdida was built by the Tayrona people around 800 AD. Although built approximately 600 years before Machu Picchu, it was “discovered” by looters on the hunt for treasure in 1975 (60 years after Machu Picchu’s “discovery”).