Think you’ve heard of all the cool stuff in San Francisco? Grace Cathedral may have an amazing pipe organ but did you know that there is another famous organ that produces sound from nature? The Wave Organ is a wave-activated acoustic art sculpture located on the coast of the San Francisco Bay in the Marina neighborhood. It was created in 1986 by Peter Richards and George Gonzalez, Exploratorium artists in residence.  The installation is made up of 25 PVC and concrete organ pipes, held at different elevations within the piece. This helps it work with the rise and fall of the ties. When the waves have an impact against the pipe ends, sound is created, though subtle. There is also sound emitted from the movement of the water in and out of the pipes. Not only is the Wave Organ a really unique art piece, you also have great views of the Golden Gate Bridge while visiting it. Picture credit: https://www.exploratorium.edu/visit/wave-organ