I stumbled across a small blurb about San Francisco's Wave Organ while I was browsing through some local interest books at a Barnes & Noble in San Jose. Being on vacation in California, and looking for some touristy things to do, I jotted it down in my Moleskine and later searched the web for more information on it. Out of everything that I saw in the past two weeks in California, the Wave Organ was one of my most favorite. The whole experience was sort of surreal.
Wikipedia.
Exploratorium.