Designed by
Title
Longyou grottoes in China #79848680
Description
Longyou grottoes dating back to 212 BC, was discovered to date to the world's largest ancient underground artificial construction. Callde collection of humanities, arts, culture, engineering technology at an organic whole, therefore, in 1992, the world of the legendary "bottomless pond" the rumble of the local farmers in four pumps in "bottom". Genesis and use these grottoes dating is no altar, become a difficult riddle to crack, also the locals call it "the world's ninth largest miracle".