[pmoriarty]

It's a science museum... the most amazing one I've ever seen by far. It's super geeky and full of interesting exhibits and gizmos, most (all?) of them made by hand on-site. It's an absolute must for anyone interested in science or technology. Go see it!!!

Interesting fact about it that I only recently found out:

The Exploratorium was founded by Robert Oppenheimer[1] ("the father of the atomic bomb") after his forced resignation.[2] If you keep an eye out, there are some plaques talking about this history at the museum, and there's also at least one uncaptioned atomic-bomb-related photo (of the first milliseconds of an atomic bomb explosion) on the walls.

[1] - https://en.wikipedia.org/wiki/Robert_Oppenheimer

[2] - https://www.exploratorium.edu/about/history/frank