One of the city's more unique attractions, the 100-acre Louisville Mega Cavern, which was created out of a 19th-century limestone quarry, now houses the world's only underground zip line course.

The Institute of Networked Energy Systems has carried out the analyses in close cooperation with the company on a gas cavern of EWE GASSPEICHER GmbH ... serves as a basis for further design of ...

Although the only wildlife you can encounter below-ground at the cavern may be a rare sighting of a bat, the grounds above the cavern feature a petting zoo with friendly farm animals that you can ...

Most of that salt will be stored in the Louisville Mega Cavern while 17,500 tons are stored in above ground locations where salt will be loaded onto vehicles as needed. The Mayor’s Office ...