I'm guessing it's a normal karst cave in limestone but intrying to look it up, Bing's references all concentrated on its archaeological importance, and the photos did reveal it to be a very significant and interesting site.
The largest bat cave is the Samal Bat Cave. Clarify the type of cave you want.
Cave of the Unknown.
most people think it was a volcano chimney of a volcano and it collapsed and made a big hole
Is cave concrete or abstract
your moms cave
Apparently it was destroyed by vandals.
Jieta Grotto is a limestone cave it is not man-made.
A land cave is a cave that was naturally made by how rocks fell in a certain area. It was not man made or altered in any way.
The cave canem mosaic was made of marble tiles (tesserae).
notjiifh
cave pearls
rock
by man
Haystack
Limestone
They made it with strays and hay stacks
Yes, it's a small cave or cavern or artificial structure or excavation made to resemble a cave or cavern.