Let's face it: Silicon Valley is far better known for geeking out than rocking out, but if you're in the area and feel like doing the latter, Guitar Showcase is best place to start. Founded in 1965, it's now the biggest independent music store in the area, offering a large selection of ukuleles, guitars, drums, keyboards, and more. Notably, they stock an impressive number of lefty guitars, high-end acoustics, and Gibsons, offer a huge selection of vintage instruments, are the exclusive purveyor of Steve Miller Band-owned and -signed gear, and even offer a rental service called the Swap Shop.