Turrialba

The early people of Costa Rica in the present-day area of Turrialba in Cartago Province built this ceremonial center with care and precision, and it is the country's primary and most important archaeological site. The Guayabo National Monument is of international significance because of its extensive roadways, retaining walls, underground channels, water supply, and flood control and drainage facilities that represent early civil engineering achievements by pre-Columbian people.