Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Carlsbad Caverns National Park' has mentioned 'World' in the following places:
Occurrence Sentence Text Source
The Big Room is the largest chamber in North America and the thirty-first largest in the world.
Its name refers to a Norse myth about a world in the sky that was accessed from Earth by a rainbow (the "Bifrost Bridge").
Halloween Hall A room roughly 30 feet in length located above the Spirit World.
Spirit World Located in the ceiling of the Big Room at its highest point (an area known as the Top of the Cross), this area is filled with white stalagmites that resembled angels to the room's discoverers.
Then they pulled a climbing rope into position, and the explorers ascended into what they named The Spirit World.
On October 31, 2013, a cave technician exploring the Spirit World area discovered a new chamber hundreds of feet up from the main area.
The natural entrance to the caverns is also an IBA because of its colony of cave swallows, possibly the world's largest.
The Permian-aged Capitan Reef complex (in which Carlsbad Caverns, Lechuguilla and other caves formed) is one of the best preserved and most accessible complexes available for scientific study in the world.
Criterion (viii): Carlsbad Caverns National Park is one of the few places in the world where on-going geologic processes are most apparent and rare speleothems continue to form, enabling scientists to study geological processes in a virtually undisturbed environment.