No. 07 of 8 · Choose a Wonder to Discover
Crystal cave
Natural void under a planetary surface
- Type
- feature type · type of place · Source · 2026-10-20
- Field
- Studied by: speleology · cave ecology · cave geology · Source · 2026-10-20
- Source
- https://commons.wikimedia.org/wiki/File:Lechuguilla_Cave_Pearlsian_Gulf.jpg
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