A team of Chinese scientists has discovered a new sinkhole 630 feet (192 meters) deep with a forest at its bottom, says a Xinhua report. On May 6, a team of speleologists and spelunkers rappelled into the giant sinkhole, which is deep
A team of Chinese scientists has discovered a new sinkhole 630 feet (192 meters) deep with a forest at its bottom, says a Xinhua report. On May 6, a team of speleologists and spelunkers rappelled into the giant sinkhole, which is deep