Tierradentro Archaeological Park
Isolated and difficult to access, Tierradentro is the lesser visited of the two large archaeological sites in the region. Scattered about several areas in the mountains, the site groups together a hundred or so hypogea, simple holes dug into the bare ground in some case, very well-preserved burial chambers for others. The most spectacular among them (30 or so) are open to the public. They all have their own style of architecture and decoration.