When a musician hits a key on the Great Stalacpipe Organ, wires run through the instrument to soft rubber mallets that strike stalactites of varying lengths which are distributed over 3.5 acres within the cave. Mathematician and electronic scientist Leland Sprinkle invented and began construction on the organ in 1954 and it was finished just over three years later. Today, it's open to visitors. "Tiny hammers tap at stone pillars filling the subterranean hallways with music," explains a reporter for OZY who visited the cave. "The effect is magical."
One of the largest instruments on Earth, the Great Stalacpipe Organ sits in a unique home: underground. This organ, which can be found in the Luray Caverns of Virginia, utilizes the cave's natural stalactites in place of pipes for making its delicate music.