The Baigong Pipes mystery

The Baigong Pipes are reported to be associated with a "pyramid" about 50 to 60 meters (160 to 200 feet) high built on Mount Baigong. The front of the "pyramid" reportedly contains three caves. The mouths of the two smaller caves have collapsed. Only the largest cave, which is 6 meters (18 feet) high, can be entered

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