A modest wood-shingled garage behind a small house on Addison Avenue — universally credited as the birthplace of Silicon Valley. The building is a private museum maintained by HP and is not normally open to the public, but you can walk up to the sidewalk and read the bronze plaque.
The visit takes ten minutes and is essentially a pilgrimage stop: there is no rope line, no gift shop, just a leafy residential street and a small garage where two Stanford engineering graduates started a company that would help define the next eighty years of American technology.