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Record No. MRB-2026-006433

Largest Karst Cave System Open to the Public

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Record Holder
Institutional / General Record
Slovenia
Category
—
Country
Slovenia ( SI )
Achievement Date
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Verification Status
Reference

Record Description

Postojna Cave is one of the largest and most visited karst cave systems in the world, stretching over 24 kilometers and home to one of the earliest cave railways, opened in the 1870s.
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