Underground Great Wall

archaeological tunnel in China. 
Frontier Tunnel Ruins

OverviewRelatedWikipediaTableS1S2S3

Wikidata
Q133312441, tunnel, China, 

• Google Knowledge entry^@
  

Location: 39.32, 116.5, KML, Maps

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China – 

Frameless

Type	Date	Description	Keywords	Notes	Source
link		Google Knowledge entry@			Wikidata

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