The basilica over the grotto venerated as Jesusโs birthplace in Bethlehem.
Paddle 8 km into a limestone cave where a river flows straight out to the sea โ one of the New Seven Wonders of Nature.
Golden-domed monastery complex above catacombs of mummified monks.
Home of Son Doong, the worldโs largest cave, plus Paradise Cave and boat trips into the river cave of Phong Nha itself.
Gunung Muluโs vast cave system, including the Deer Cave and its nightly bat exodus.
Rock-cut cave temples in Maharashtra, crowned by the monolithic Kailasa temple.
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