Fodor's Expert Review Parque Arqueológico de Tierradentro
Loosely translated, tierradentro means "within the ground." Within the ground here you'll find the New World's largest concentration of hypogea, or underground burial chambers, constructed much like Rome's catacombs. The name of the pre-Columbian people who constructed the tombs has been lost. Most are thought to date from the 6th through 10th centuries. A UNESCO World Heritage site since 1995, many of the tombs—78 have been excavated so far—are up to 40 feet wide with walls painted with anthropomorphic and zoomorphic figures. Tierradentro, some five hours north of San Agustín, is a bit harder to reach than San Agustín and Alto de las Piedras parks; it's worth spending a night in nearby San Andrés. If traveling from Popayán, this makes an excellent midway stop before continuing on to San Agustín. As with the other parks, a guide is useful to help you understand what you're seeing here.