The birthplace of Silicon Valley, or at least according to its historical sign out front, the HP Garage was home to the early days of the Hewlett-Packard company. Dave Packard and his wife, Lucille, moved into the first floor apartment in 1938, and Bill Hewlett lived in the shed in the back. After Hewlett got married, the garage was turned into HP's business office.
It was christened the "Birthplace of Silicon Valley" in 2007 when it was added to the National Register of Historic Places.
The garage and house are closed to public tours, but visitors can take pictures from the side walk.
Address: 367 Addison Ave, Palo Alto, CA 94301
Website: HP Garage Museum