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Take a look at some of the most incredible caves in the world

StarsInsider Logo By Pixabay of StarsInsider | Slide 1 of 30: Esta gruta fica situada no Parque Nacional de Phong Nha-Kẻ Bàng, declarado Património da Humanidade pela UNESCO em 2003.

Son Doong Cave (Vietnam)

This cave is in the Phong Nha-Kẻ Bàng national park, and was declared a UNESCO world heritage site in 2003.
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