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.
The cave, now known as Son Doong Cave, or âthe cave of the mountain riverâ was far larger than anyone had ever imagined. The largest cavern stretched for over 5 km (about 3 miles), was 650 feet wide, and had walls that soared upwards over 200 m (656 feet), high enough to comfortably fit a modern day skyscraper. Son Doong Cave. That little speck with the light is a person.