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.

Lights Under Louisville, located in the Louisville Mega Cavern, is a magical drive-through holiday light show situated 100 feet below ground. "Because we are underground we're dark all the time ...

THE PARKING LOT CLEARED THE STREAM BACK IN ITS BANK. SO WELCOME TO LOUISVILLE CAVERNS. I’M STEVE, AND I’LL BE YOUR TOUR GUIDE. THE LINVILLE CAVERNS ARE BACK OPEN FOR BUSINESS. EVERYTHING WE ...

(WAVE) - Seven million lights are used for the Christmas Displays in the Louisville Mega Cavern’s Lights Under Louisville attraction. WAVE Photojournalist Michael Flynn drives through the ...

The umbrella leaks at places called sinkholes, from which surface water makes its way underground, eroding the limestone into a honeycomb of caverns. Mammoth, the world's longest known cave system ...