Inside China's mysterious sinkhole – BBC REEL
Why the open web links it
Explores the geological formation and mysteries of one of China's largest sinkholes.
Linked by 20 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including brightside.me, listverse.com, atraverslesport.com, atyew.com, aventura-amazonia.com.