Unlike Guatemala's Tikal or the Incan ruins of Peru, Costa Rica is not exactly famous for their archaeological history. But veiled in the shadow of the Turrialba Volcano—like a mythical "lost city" from a storybook—lies a mysterious ancient city that was home to over 10,000 people who seemed to have vanished just before the arrival of the Spanish in the 16th century. This region, known as Guayabo National Monument, is the most important archaeological site visited on Costa Rica tours.
Are There Pyramids in Costa Rica?
Not in the way most travelers picture them. Costa Rica's best-known archaeological site, Guayabo National Monument, is sometimes described online as home to "pyramids," but the structures that survive there are circular stone mounds, not the stepped or pointed pyramids found in Egypt or in Mesoamerican sites like Tikal. Guayabo sits in the shadow of Turrialba Volcano and was inhabited from roughly 1000 BCE until it was abandoned around 1400 CE, centuries before the Spanish arrived. What's still visible today includes 43 stone mounds — one at the site's center considerably larger than the rest — paved roads, including one stretching several miles into the surrounding forest, and stone aqueducts that once carried drinking water through the settlement. In 2009, the American Society of Civil Engineers recognized Guayabo as an International Historic Civil Engineering Landmark for that road and water infrastructure. Only a small fraction of the 218-hectare site has been excavated, so a guided visit is the best way to make sense of what you're looking at.
Stone foundations at Guayabo National Monument Archaeological Site (Torrey Ebaugh)
Guayabo Ruins
Although it lacks the towering pyramids of Tikal or Machu Picchu, Guayabo does not lack for mystery or intrigue. Little is known about the inhabitants of this region; archaeologists have yet to discover even the name of the city and its inhabitants. Excavations began in 1968 by Dr. Carlos Aquilar Piedra, an archaeologist from the University of Costa Rica. But within the 218 hectares of this national monument, only 10% of the site has been excavated. With all its mystery, with all its uncertainty, Guayabo is a perfect place for imaginations to run wild during Costa Rica tours.
Ancient Engineering in Costa Rica
Who were these early residents of Costa Rica? We can only piece together their history through the clues they left behind. Paved stone roads stretch into the surrounding forest for miles. Was trading part of their economical structure? After 2500 years, the carefully designed aqueducts lined with tiny stones to filter drinking water are still usable today. Were they a community of engineers? Tombs are found throughout the site. Was religion a prevalent part of the society's structure? Tapering wooden houses once sat on the remnants of rock-based foundations of different size and proportions. Were they a democratic culture—a chiefdom? Evidence suggests they were a people of great religious and political importance, but details on their civilization have yet to be uncovered.
Morpho Butterfly - my favorite. (Franny Friesz)
Wildlife at Guayabo
Costa Rica tours to this area also showcase a breathtaking display of wildlife. Colorful butterflies and a spectacular variety of birds populate Guayabo today. Sloths, armadillos, rabbits, frogs, and lizards find shelter in the dense foliage of the surrounding rainforest. Ferns and orchids can also be spotted on a peaceful walk along the ancient roads and pathways. Adventure Life's custom Costa Rica tours give you the opportunity to visit this remarkable and mystifying place.
Stone Carving at Guayabo National Monument (Torrey Ebaugh)
Petroglyphs Costa Rica
Petroglyphs are everywhere. Some represent birds, lizards, and giant cats, while others appear to have no clear meaning. Enhancing Guayabo's secrecy, these ancient and abstract carvings continue to baffle archaeologists today. Travelers on Costa Rica tours should look for the petroglyph at the entrance of the site. It seems to protect Guayabo, keeping danger out. Or perhaps it is welcoming you in, an invitation into Costa Rica's rich and mysterious history. Guayabo still has much to reveal and much to discover.
About Costa Rica Maya Ruins
Though you won’t find towering pyramids in Costa Rica like in Mexico or Peru, the country’s ancient sites still hold deep cultural and historical value. The mysterious stone spheres of Costa Rica continue to puzzle archaeologists and fascinate travelers with their perfect roundness and unknown origins. While there are no confirmed Costa Rica Maya ruins, the country still offers fascinating pre-Columbian sites like Guayabo that hint at complex ancient civilizations. Many travelers visit Guayabo National Monument to explore its ancient roads, aqueducts, and petroglyphs hidden beneath the Turrialba Volcano. Among the many Costa Rica National Parks and Monuments, Guayabo stands out as a unique blend of natural beauty and historical mystery.
Guayabo is a fascinating Costa Rica National Monument where history and nature meet, and offers travelers the chance to experience a piece of ancient Costa Rica history firsthand.
If you're intrigued by ancient mysteries, be sure to visit the stone sphere Costa Rica is famous for, especially in the Diquís Delta region. Talk to our Trip Planners about including a visit to Guayabo National Monument on your next personalized Costa Rica adventure.
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Costa Rica
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