The Grotta Gigante is a giant cave on the Italian side of the Trieste Karst (Carso). Its central cavern is the second world's largest show cave.

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Size: 6835px × 4562px
Location: Borgo Grotta Gigante, Trieste, Italy
Photo credit: © Marco Lissoni / Alamy / Afripics
License: Royalty Free
Model Released: No

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