Smithsonian magazine (USA) vote 25 most special place right up to the 21st century, in which hang Sơn Đoòng in Quang Binh ranked number 1. Here is a list of General destination of many fields, including science, history, art and explore. Paint the Smithsonian was described as Đoòng largest cave, width enough for two Boeing 747 aircraft parked; in the cave there is a river flowing through. But even more spectacular is a lush forest inside the Sun brilliantly through the mouth of the cave. Painted long Đoòng fivefold the opponent standing behind is Deer cave in Sarawak, Malaysia.
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