Ruby Falls is 1,120 feet below the surface and is surrounded by smaller caves and myriad stalactites and stalagmites.

To reach a prime viewing spot, a glass-front elevator was built.

A one-way trip down this high-speed elevator takes half a minute, traveling at a speed of 600 ft/min.

The tall and cavernous Ruby Falls in Tennessee

So, how was Ruby Falls discovered?

During the process, a team member drilled into an 18-inch opening that led to a previously unknown cave.

Marveled by the sight, Lambert named the waterfall and cave after his wife, Ruby.

Rocky formations at the Ruby Falls

Given the intricacies of the location, all tours are guided.

To reach a prime viewing spot, the glass-front elevator was built.

Blue and yellow sunrise at the Lookout Mountain Cave

Rocky formations at the Ruby Falls

The tall and cavernous Ruby Falls in Tennessee

Entrance to Ruby Falls