Intersting Facts
Sunday, 8 September 2013
Hang Son Doong, the “mountain river cave” in Vietnam, may be the world’s biggest subterranean passage. A half-mile block of 40-story buildings could fit inside this stretch of the cave.
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Hang Son Doong, the “mountain river cave” in Vietnam, may be the world’s biggest subterranean passage. A half-mile block of 40-story buildings could fit inside this stretch of the cave.
No comments:
Post a Comment