Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Pre-Hispanic City and National Park of Palenque' has mentioned 'Stone' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| In 1952 Alberto Ruz Lhuillier removed a stone slab in the floor of the back room of the temple superstructure to reveal a passageway (filled in shortly before the city's abandonment and reopened by archeologists) leading through a long stairway to Pakal's tomb. | WIKI |
| Unique to Pakal's tomb is the psychoduct, which leads from the tomb itself, up the stairway and through a hole in the stone covering the entrance to the burial. | WIKI |
| An aqueduct, constructed of great stone blocks with a three-meter-high vault, diverts the Otulum River to flow underneath the main plaza. | WIKI |