Computer History Museum

If you happen to be on the north-western corner of Santa Clara county (the edge of silicon valley furthest up the peninsula) and are looking for something to pass the time: do check out the Computer History Museum.  They've got vintage hardware of all sorts --UNIVAC, ENIAC, the original Alto, even an Altair.  And if you find that exciting, you should enjoy the various resident Cray super-computers.   There's also a lot of other misc systems, a software chess exhibit, old style hard-disk platters that have less storage than modern video cards yet are the size of a semi's rim.  Even though I am too young for much of this to be nostalgic: the place still manages to have a fondness-for-yesterday's-technology sort of effect on me.  Plus, it couldn't be at a better location (it is just a short jog south from the Shoreline golf-course, which is adjoined with the Steven's Creek Trail).  And if you happen to be meeting a Googler for lunch or something, their HQ is just around the corner.