Nuclear Waste Adventure Trail and Museum

It's a seven-story high tomb of radioactive waste. The mountainous site covers 45 acres and stores 1.5 million cubic yards of material. And it's there for you to explore.

The federal government says radiation levels are low enough for people to visit the mountain of nuclear weapons waste it has built and covered in St. Charles County. A building with explanatory exhibits was opened Aug 5, 2002.