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| Thien Huong grotto is part of Tam Coc – Bich Dong tourist complex located in Ninh Hai commune, Hoa Lu district, Ninh Binh province (Photo: VNA) |
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| This grotto is wide, located on mountain and looked very much like a colossal lightwell since the ceiling of the grotto is a hole (Photo: VNA) |
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| It has also another name – Sky Grotto (Photo: VNA) |
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| Thien Huong grotto is a can’t-miss destination for any visitors coming to Ninh Binh province (Photo: VNA) |
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| (Photo: VNA) |
What the stars mean:
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