The Musee Mecanique is one of the world's largest privately owned collections of coin-operated mechanical musical instruments and antique arcade machines.
A collection of over 300 items including orchestrions, coin operated pianos, antique slot machines, and animations, small bird boxes and even a steam-powered motorcycle were collected by the late Edward Galland Zelinsky (1922-2004).
The good news is that the majority of this vast private collection is on public display and you can see the machines in action!
If you are visiting the San Francisco area, The Musee Mecanique is located on Pier 45 at the foot of Taylor Street in San Francisco's Fisherman's Wharf. And hey...admission is free.
The Musee Mecanique has an excellent web site providing some history of the collection, an online shop, and many wonderful photos of their attractions.