| name | discoverer | image | geology | type | Area (m²) | elevation (m) | Range | date discovered | Depth (m) | Height (m) | city | Website | administrative división | continent | Country | latitude (°) | Width (m) | Length (m) | longitude (°) | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Abisso di Trebiciano | 329 | 341 | Trieste | website | Friuli-Venezia Giulia | Europe | Italy | 45.6833343506 | 13.8333330154 | Map | ||||||||||
| Grotta Nera | 36 | 402 | Trieste | website | Friuli-Venezia Giulia | Europe | Italy | 45.6166648865 | 13.8500003815 | Map | ||||||||||
| Vilenica Cave |  | 190 | 417 | Trieste | website | Friuli-Venezia Giulia | Europe | Italy | 45.6666679382 | 13.8999996185 | Map |