This large midwestern cavern features impressive rock formations and an underground waterfall.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

The oldest house in Galena, Illinois, now is a reminder of when this city was the world's lead mining capital.

This family driveway also serves as the highest point in Illinois.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Explore a real 19th-century lead and zinc mine at this immersive series of exhibits.