If you’re a visiting dignitary whose country has a Gross National Product equal to or greater than the State of California, your visit to Silicon Valley consists of a lunch/dinner with some combination of the founders of Google, Facebook, Apple and Twitter and several brand name venture capitalists. If you have time, the President of Stanford will throw in a tour, and then you can drive by Intel or some Clean Tech firm for a photo op standing in front of an impressive looking piece of equipment.  
 
The “official dignitary” tour of Silicon Valley is like taking the jungle cruise at Disneyland and saying you’ve been to Africa. Because you and your entourage don’t know the difference between large innovative companies who once were startups (Google, Facebook, et al) and a real startup, you never really get to see what makes the valley tick.  
 
If you didn’t come in your own 747, here’s a guide to what to see in the valley (which for the sake of this post, extends from Santa Clara to San Francisco.) This post offers things to see/do for two types of visitors: I’m just visiting and want a “tourist experience” (i.e. a drive by the Facebook / Google / Zynga / Apple building) or “I want to work in the valley” visitor who wants to understand what’s going on inside those buildings.  
 
I’m leaving out all the traditional stops that you can get from the guidebooks.