Subterranean structures in the World

Vast networks of halls, subterranean artificial rooms and natural caves revised sometimes by the hand of the man to act as organized shelter and as communications in Antique and ancient underground cities.



Japan Scotland Turkey Peru
USA France Greece Cyprus
Corsica Crete Malta Pacific Islands

Sardinia Sicily Tahiti India

Iran Italy Ecuador Lebanon

Mexico Palestine Spain Russia

Egypt Tasmania Tibet Chine

caves in Malaysia
Vietnam Malaysia
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