Braidwood is a city in Will County, Illinois, United States, approximately 53 miles (85 km) southwest of Chicago and 18 miles (29 km) south of Joliet. The population was 5,203 at the 2000 census. The Braidwood Nuclear Generating Station, a nuclear power plant currently owned by Exelon Corporation, is also located in the area (although the plant's address is actually in the nearby town of Braceville).
The Son Doong Cave in Vietnam is the biggest cave in the world. It's over 5.5 miles long, has a jungle and river, and could fit a 40-story skyscraper within its walls. But nobody knew any of that until about six years ago.
Approaching the jungle of Son Doong cave. Again, those little red specks along the bottom are people. Currently, Son Doong cave is recognized as being the worldâs largest cave by far, much larger than the previous title holder, Malaysiaâs Deer Cave. The main cavern is so large that it has its own climate, and clouds have even been known to form within it.