1. The Zadar Sea Organ, Croatia
A set of thirty-five pipes run through two-hundred and thirty feet of white marble steps. Underneath, the pipes open to receive the oscillating energy of the sea waves, and the resulting compression and decompression of air powers the sound the organ’s harmonic pipes to create a song which is, quote, “unpredictable but tuned.” (There are other sea organs, including one at Blackpool, but the Zadar one was first).
2. The Bubble Organ
A student called Aaron Wendel created this instrument out of old rain drain pipes, PVC, pieces of old furniture and other junk. Using two balloons as the source of air, the depressed keys create resonating tones in the PVC pipes that combine with the sound of bubbling water to create a sound like, well, like a hippo using a Japanese toilet, perhaps.
3. The Great Stalacpipe Organ, Virginia
Created by Pentagon scientist Leland W. Sprinkle in 1954, this is the world’s largest musical instrument, at 3 ½ acres in size. Sprinkle carefully selected stalactites throughout the Luray caverns which resonated at specific pitches and tones, and attached rubber mallets which would play these stalactites when keys were pressed at the central organ mechanism.
More unusual musical instruments here.