Occurrence of Attributes in Original Text
The text related to the cultural heritage 'National Archeological Park of Tierradentro' has mentioned 'Tuff' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The area holds the largest concentration of pre-Columbian monumental shaft tombs with side chambers--known as hypogeaxe2x80x94which were carved in the volcanic tuff below hilltops and mountain ridges. | UNESCO |
| The degree of complexity achieved by the architecture of these tombs with chambers that resemble the interior of large houses is evident in the admirable carving in tuff of the stairs that give access to a lobby and the chamber, as well as in the skilful placement of core and perimeter columns that required very careful planning. | UNESCO |